Home / 7,251.38-10,872.68-3,959.90

Finding the Fourth Proportional to 7,251.38, 10,872.68 and 3,959.90

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Solution

The fourth proportional to 7,251.38, 10,872.68 and 3,959.90 is: 5,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.38 : 10,872.68 = 3,959.90 : x
  2. Step 2: Convert to fraction form
    7,251.38/10,872.68 = 3,959.90/x
  3. Step 3: Cross multiply
    7,251.38x = 10,872.68 × 3,959.90
  4. Step 4: Simplify right side
    7,251.38x = 43,054,725.53
  5. Step 5: Solve for x
    x = 43,054,725.53/7,251.38
  6. Step 6: Final answer
    x = 5,937.45

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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.