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Finding the Fourth Proportional to 3,753.29, 5,629.88 and 1,672.76

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Solution

The fourth proportional to 3,753.29, 5,629.88 and 1,672.76 is: 2,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.29 : 5,629.88 = 1,672.76 : x
  2. Step 2: Convert to fraction form
    3,753.29/5,629.88 = 1,672.76/x
  3. Step 3: Cross multiply
    3,753.29x = 5,629.88 × 1,672.76
  4. Step 4: Simplify right side
    3,753.29x = 9,417,401.56
  5. Step 5: Solve for x
    x = 9,417,401.56/3,753.29
  6. Step 6: Final answer
    x = 2,509.11

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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.