Home / 7,188.39-10,781.87-2,257.89

Finding the Fourth Proportional to 7,188.39, 10,781.87 and 2,257.89

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Solution

The fourth proportional to 7,188.39, 10,781.87 and 2,257.89 is: 3,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.39 : 10,781.87 = 2,257.89 : x
  2. Step 2: Convert to fraction form
    7,188.39/10,781.87 = 2,257.89/x
  3. Step 3: Cross multiply
    7,188.39x = 10,781.87 × 2,257.89
  4. Step 4: Simplify right side
    7,188.39x = 24,344,265.16
  5. Step 5: Solve for x
    x = 24,344,265.16/7,188.39
  6. Step 6: Final answer
    x = 3,386.61

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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.