Answer:
Yes, ratios of blue paint to yellow paint form a proportional relationship
Explanation:
In case of the first person:
Number of blue parts = 2
Number of yellow parts
![=3](https://img.qammunity.org/2021/formulas/mathematics/middle-school/g1mx60wc3pd4wypbrjbytm2n0rnef7guph.png)
In case of another person:
Number of blue parts
![=4](https://img.qammunity.org/2021/formulas/mathematics/high-school/ot5rqj2shva2vg3004dw8g49v3rnul1huj.png)
Number of yellow parts
![=6](https://img.qammunity.org/2021/formulas/mathematics/high-school/dkjecclwlrfbnwculm7wsg2ejsbvvw611x.png)
Ratio of blue parts
![=2:4=1:2](https://img.qammunity.org/2021/formulas/mathematics/college/hckadtjrjmj2we6yz7bvd2paidsucx2q8s.png)
Ratio of yellow parts
![=3:6=1:2](https://img.qammunity.org/2021/formulas/mathematics/college/3k9dxu5mgdz5rpm5c0hbngb22es1v250d4.png)
As ration of blue parts is equal to the ratio of yellow parts, ratios of blue paint to yellow paint form a proportional relationship