Home / 6,872.64-10,306.98-2,489.28

Finding the Fourth Proportional to 6,872.64, 10,306.98 and 2,489.28

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Solution

The fourth proportional to 6,872.64, 10,306.98 and 2,489.28 is: 3,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.64 : 10,306.98 = 2,489.28 : x
  2. Step 2: Convert to fraction form
    6,872.64/10,306.98 = 2,489.28/x
  3. Step 3: Cross multiply
    6,872.64x = 10,306.98 × 2,489.28
  4. Step 4: Simplify right side
    6,872.64x = 25,656,959.17
  5. Step 5: Solve for x
    x = 25,656,959.17/6,872.64
  6. Step 6: Final answer
    x = 3,733.20

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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.