Finding the Fourth Proportional to 3,665,397.87, 5,058,247.64 and 2,137,209.75
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Solution
The fourth proportional to 3,665,397.87, 5,058,247.64 and 2,137,209.75 is: 2,949,348.62
Step by Step Solution
- Step 1: Write the proportion equation
3,665,397.87 : 5,058,247.64 = 2,137,209.75 : x - Step 2: Convert to fraction form
3,665,397.87/5,058,247.64 = 2,137,209.75/x - Step 3: Cross multiply
3,665,397.87x = 5,058,247.64 × 2,137,209.75 - Step 4: Simplify right side
3,665,397.87x = 10,810,536,163,436.44 - Step 5: Solve for x
x = 10,810,536,163,436.44/3,665,397.87 - Step 6: Final answer
x = 2,949,348.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.