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Finding the Fourth Proportional to 2,313.72, 3,463.02 and 1,489.86

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Solution

The fourth proportional to 2,313.72, 3,463.02 and 1,489.86 is: 2,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.72 : 3,463.02 = 1,489.86 : x
  2. Step 2: Convert to fraction form
    2,313.72/3,463.02 = 1,489.86/x
  3. Step 3: Cross multiply
    2,313.72x = 3,463.02 × 1,489.86
  4. Step 4: Simplify right side
    2,313.72x = 5,159,414.98
  5. Step 5: Solve for x
    x = 5,159,414.98/2,313.72
  6. Step 6: Final answer
    x = 2,229.92

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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.