Divide 28 cans of soda into two groups so the ratio is 3 to 4 explain

3 : 4 = 28
3+4 parts = 28
1 part = 28/7
1 part= 4

(Calculation of [3 + 4 ] is to get the [total of parts] that represent as 28 cans of soda)

Next,[ 28 should be divide by 7] (4 +3) to get [one part] represent how many cans of soda.

3 parts=
3 x 4
12

4 parts =
4 x4
16

([3 and 4 should be multiply with '4'] (28/7) to get [how many cans of soda that represent the ratio])

Well it depends on the object or substance

This question is incomplete and not physics but i'm  willing to if you can give a better question