Home / 6,340.20-8,747.52-3,687.12

Finding the Fourth Proportional to 6,340.20, 8,747.52 and 3,687.12

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Solution

The fourth proportional to 6,340.20, 8,747.52 and 3,687.12 is: 5,087.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.20 : 8,747.52 = 3,687.12 : x
  2. Step 2: Convert to fraction form
    6,340.20/8,747.52 = 3,687.12/x
  3. Step 3: Cross multiply
    6,340.20x = 8,747.52 × 3,687.12
  4. Step 4: Simplify right side
    6,340.20x = 32,253,155.94
  5. Step 5: Solve for x
    x = 32,253,155.94/6,340.20
  6. Step 6: Final answer
    x = 5,087.09

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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.