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Finding the Fourth Proportional to 3,738.95, 5,602.04 and 2,641.20

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Solution

The fourth proportional to 3,738.95, 5,602.04 and 2,641.20 is: 3,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.95 : 5,602.04 = 2,641.20 : x
  2. Step 2: Convert to fraction form
    3,738.95/5,602.04 = 2,641.20/x
  3. Step 3: Cross multiply
    3,738.95x = 5,602.04 × 2,641.20
  4. Step 4: Simplify right side
    3,738.95x = 14,796,108.05
  5. Step 5: Solve for x
    x = 14,796,108.05/3,738.95
  6. Step 6: Final answer
    x = 3,957.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.