Home / 6,520.28-9,781.18-2,076.39

Finding the Fourth Proportional to 6,520.28, 9,781.18 and 2,076.39

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Solution

The fourth proportional to 6,520.28, 9,781.18 and 2,076.39 is: 3,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.28 : 9,781.18 = 2,076.39 : x
  2. Step 2: Convert to fraction form
    6,520.28/9,781.18 = 2,076.39/x
  3. Step 3: Cross multiply
    6,520.28x = 9,781.18 × 2,076.39
  4. Step 4: Simplify right side
    6,520.28x = 20,309,527.49
  5. Step 5: Solve for x
    x = 20,309,527.49/6,520.28
  6. Step 6: Final answer
    x = 3,114.83

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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.