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Finding the Fourth Proportional to 3,663.87, 5,499.87 and 1,474.12

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Solution

The fourth proportional to 3,663.87, 5,499.87 and 1,474.12 is: 2,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.87 : 5,499.87 = 1,474.12 : x
  2. Step 2: Convert to fraction form
    3,663.87/5,499.87 = 1,474.12/x
  3. Step 3: Cross multiply
    3,663.87x = 5,499.87 × 1,474.12
  4. Step 4: Simplify right side
    3,663.87x = 8,107,468.36
  5. Step 5: Solve for x
    x = 8,107,468.36/3,663.87
  6. Step 6: Final answer
    x = 2,212.82

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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.