To generate the pattern starting from 3 and using the "Multiply by 4" rule, we calculate each term step by step:
- First term: \( 3 \)
- Second term: \( 3 \times 4 = 12 \)
- Third term: \( 12 \times 4 = 48 \)
- Fourth term: \( 48 \times 4 = 192 \)
- Fifth term: \( 192 \times 4 = 768 \)
Therefore, the fifth term in this pattern is 768.