Home / 8,581.50-12,872.25-2,738.57

Finding the Fourth Proportional to 8,581.50, 12,872.25 and 2,738.57

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Solution

The fourth proportional to 8,581.50, 12,872.25 and 2,738.57 is: 4,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.50 : 12,872.25 = 2,738.57 : x
  2. Step 2: Convert to fraction form
    8,581.50/12,872.25 = 2,738.57/x
  3. Step 3: Cross multiply
    8,581.50x = 12,872.25 × 2,738.57
  4. Step 4: Simplify right side
    8,581.50x = 35,251,493.32
  5. Step 5: Solve for x
    x = 35,251,493.32/8,581.50
  6. Step 6: Final answer
    x = 4,107.85

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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.