Answer: enter answers in this order: figure 2, figure 4, figure 2, is both twice as high and twice as wide. figure 4 is both half as tall and half as wide.
Explanation:
The original figure can be enclosed in a 2x2 box (I'm trying to explain this as simple as possible)
figure 2 can be enclosed in a 4x4 box which is half as wide and half as tall.
Figure 4 can be enclosed in a 1x1 box which is half as wide and half as tall as the original.