Home / 4,581.39-6,872.10-1,118.61

Finding the Fourth Proportional to 4,581.39, 6,872.10 and 1,118.61

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Solution

The fourth proportional to 4,581.39, 6,872.10 and 1,118.61 is: 1,677.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,581.39 : 6,872.10 = 1,118.61 : x
  2. Step 2: Convert to fraction form
    4,581.39/6,872.10 = 1,118.61/x
  3. Step 3: Cross multiply
    4,581.39x = 6,872.10 × 1,118.61
  4. Step 4: Simplify right side
    4,581.39x = 7,687,199.78
  5. Step 5: Solve for x
    x = 7,687,199.78/4,581.39
  6. Step 6: Final answer
    x = 1,677.92

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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.