Home / 6,543.28-9,031.64-3,892.56

Finding the Fourth Proportional to 6,543.28, 9,031.64 and 3,892.56

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Solution

The fourth proportional to 6,543.28, 9,031.64 and 3,892.56 is: 5,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.28 : 9,031.64 = 3,892.56 : x
  2. Step 2: Convert to fraction form
    6,543.28/9,031.64 = 3,892.56/x
  3. Step 3: Cross multiply
    6,543.28x = 9,031.64 × 3,892.56
  4. Step 4: Simplify right side
    6,543.28x = 35,156,200.60
  5. Step 5: Solve for x
    x = 35,156,200.60/6,543.28
  6. Step 6: Final answer
    x = 5,372.87

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1.5x scale

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.