Home / 5,113.28-7,665.08-3,861.92

Finding the Fourth Proportional to 5,113.28, 7,665.08 and 3,861.92

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Solution

The fourth proportional to 5,113.28, 7,665.08 and 3,861.92 is: 5,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.28 : 7,665.08 = 3,861.92 : x
  2. Step 2: Convert to fraction form
    5,113.28/7,665.08 = 3,861.92/x
  3. Step 3: Cross multiply
    5,113.28x = 7,665.08 × 3,861.92
  4. Step 4: Simplify right side
    5,113.28x = 29,601,925.75
  5. Step 5: Solve for x
    x = 29,601,925.75/5,113.28
  6. Step 6: Final answer
    x = 5,789.22

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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.