# Ratios and Proportions - enlarge photograph

A snapshot measures 2 1/2 inches by 1 7/8 inches.

It is to be enlarged so that the longer dimension will be 4 inches.

The lengths of the enlarged shorter dimension will be:

1. 2 1/2 inches

2. 3 inches

3. 3 7/8 inches

4. None of the above

### Comments for Ratios and Proportions - enlarge photograph

 Oct 08, 2013 enlarge photograph by: Staff Answer Part I the ratio between the two sides of the photograph is constant width to length = width : length = width / length width / length = (1 7/8 inches) / (2 1/2 inches) width / length = (15/8) / (5/2) width / length = (15/8) * (2/5) width / length = 3/4 this ratio remains the same when the photograph is enlarged (enlarged width) / (enlarged length) = 3/4 the enlarged length is known enlarged length = 4 inches substitute 4 inches for the enlarged length in the proportion (enlarged width) / (enlarged length) = 3/4 (enlarged width) / (4 inches) = 3/4 solve for enlarged width (enlarged width) / (4) = 3/4 multiply each side of the equation by 4 4 * ((enlarged width) / (4)) = 4 * (3/4) enlarged width = 3 inches the final answer is: enlarged width = 3 inches, choice 2. -----------------------------------------------------

 Oct 08, 2013 enlarge photograph by: Staff ----------------------------------------------------- Part II -----------------------------------------------------

 Oct 08, 2013 enlarge photograph by: Staff ----------------------------------------------------- Part III Thanks for writing. Staff www.solving-math-problems.com