photo measures width 3 inch, by hight 5inch, enlarge the hight to8.5 what is the resulting width

Question

photo that measures 3inch wide and 5 inch hight needs to be enlarged so the hight is 8.5 inch. What will the resulting width be?

Answer 1

Set the picture size as a ratio. Use width on the top of the ratio and height on the bottom:

3 in/5 in

Then set the size of the enlarged photo to a ratio in the same way

x in/8.5 in

Set the ratios equal to each one another using the variable x as the unknown width.

3/5=x/8.5

Solve for x by multiplying both sides by 8.5

x=5.1