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Finding the Fourth Proportional to 6,872.99, 10,310.23 and 2,489.47

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Solution

The fourth proportional to 6,872.99, 10,310.23 and 2,489.47 is: 3,734.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.99 : 10,310.23 = 2,489.47 : x
  2. Step 2: Convert to fraction form
    6,872.99/10,310.23 = 2,489.47/x
  3. Step 3: Cross multiply
    6,872.99x = 10,310.23 × 2,489.47
  4. Step 4: Simplify right side
    6,872.99x = 25,667,008.28
  5. Step 5: Solve for x
    x = 25,667,008.28/6,872.99
  6. Step 6: Final answer
    x = 3,734.47

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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.