Answer:
4:6, 6:9, 8:12 and so on.
Explanation:
If you want to find ratios equivalent to another ratio, you just have to multiply both parts of the ratio by the same number.
For example: 2*2=4
3*2=6
so 4:6 is equivalent to 2:3.
A few other ratios equivalent to it would be include:
6:9
8:12
10:15
12:18
14:21