I need help solving a proportion problem this is to do with Intermediate Algebra Please HELP!!

Question

on a world map the distance between city A and city B is 5.625 inches. the two cities are actually 1688 miles apart. on the same map, what would be the distance between city c and city d, two cities that are actually 2189 miles apart? Use a Proportion to solve this problem.

Answer 1

5.625 in ? in

---------------- = ---------------------

1688 miles 2189

Cross multiplies:

5.625 * 2189 = 1688 * ?

5.625*2189/1688 = ?

? = 7.2945053317535545023696682464455

7 + 5/16 inches