Home / 10,327.92-15,492.45-2,931.79

Finding the Fourth Proportional to 10,327.92, 15,492.45 and 2,931.79

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Solution

The fourth proportional to 10,327.92, 15,492.45 and 2,931.79 is: 4,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.92 : 15,492.45 = 2,931.79 : x
  2. Step 2: Convert to fraction form
    10,327.92/15,492.45 = 2,931.79/x
  3. Step 3: Cross multiply
    10,327.92x = 15,492.45 × 2,931.79
  4. Step 4: Simplify right side
    10,327.92x = 45,420,609.99
  5. Step 5: Solve for x
    x = 45,420,609.99/10,327.92
  6. Step 6: Final answer
    x = 4,397.85

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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.