Answer:
3rd option:

Explanation:
According to the given table for every 4 blue beads there are 7 green beads. So the ratio between the blue beads and green beads is 4:7
i.e.

Converting the ratios to fractions, we get:

Cross multiplying, we get:

Dividing both sides by 4, we get:

Hence, the 3rd option correctly related the number of green beads to the number of blue beads.