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Finding the Fourth Proportional to 2,664.77, 4,000.79 and 1,432.76

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Solution

The fourth proportional to 2,664.77, 4,000.79 and 1,432.76 is: 2,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.77 : 4,000.79 = 1,432.76 : x
  2. Step 2: Convert to fraction form
    2,664.77/4,000.79 = 1,432.76/x
  3. Step 3: Cross multiply
    2,664.77x = 4,000.79 × 1,432.76
  4. Step 4: Simplify right side
    2,664.77x = 5,732,155.46
  5. Step 5: Solve for x
    x = 5,732,155.46/2,664.77
  6. Step 6: Final answer
    x = 2,151.09

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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.