Scaling on map is defined as the ratio of a distance on the map to the corresponding distance on the ground.
Here, 3.2 centimeters on the map is equivalent to 4 kilometers.
We can use unitary method to find, how many kilometer/kilometers each centimeter corresponds to.
Using the unitary method:
[tex]3.2 cm=4 km[/tex]
[tex]1 cm=\frac{4}{3.2} =1.25km[/tex]
Therefore, the scale of map represents 1.25 kilometers for each centimeter.
