the model of a car is 4 1/8 inches wide. is three inches ok the model represents five feet what is the actual width of the car

3 in. / 5 ft = 4 1/8in divide by ?ft

3/5 = 33/8 divided by x

multiply both sides by x.

3x/5 =33/8

Multiply both sides by 5/3

x = (33 times 5) divide by (3 times 8).