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Finding the Fourth Proportional to 6,882.88, 10,321.84 and 2,499.20

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Solution

The fourth proportional to 6,882.88, 10,321.84 and 2,499.20 is: 3,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,882.88 : 10,321.84 = 2,499.20 : x
  2. Step 2: Convert to fraction form
    6,882.88/10,321.84 = 2,499.20/x
  3. Step 3: Cross multiply
    6,882.88x = 10,321.84 × 2,499.20
  4. Step 4: Simplify right side
    6,882.88x = 25,796,342.53
  5. Step 5: Solve for x
    x = 25,796,342.53/6,882.88
  6. Step 6: Final answer
    x = 3,747.90

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1.5x scale

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.