Home / 3,892.68-5,372.60-2,320.88

Finding the Fourth Proportional to 3,892.68, 5,372.60 and 2,320.88

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Solution

The fourth proportional to 3,892.68, 5,372.60 and 2,320.88 is: 3,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.68 : 5,372.60 = 2,320.88 : x
  2. Step 2: Convert to fraction form
    3,892.68/5,372.60 = 2,320.88/x
  3. Step 3: Cross multiply
    3,892.68x = 5,372.60 × 2,320.88
  4. Step 4: Simplify right side
    3,892.68x = 12,469,121.42
  5. Step 5: Solve for x
    x = 12,469,121.42/3,892.68
  6. Step 6: Final answer
    x = 3,203.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.