Home / 7,187.88-10,781.79-2,257.89

Finding the Fourth Proportional to 7,187.88, 10,781.79 and 2,257.89

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Solution

The fourth proportional to 7,187.88, 10,781.79 and 2,257.89 is: 3,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.88 : 10,781.79 = 2,257.89 : x
  2. Step 2: Convert to fraction form
    7,187.88/10,781.79 = 2,257.89/x
  3. Step 3: Cross multiply
    7,187.88x = 10,781.79 × 2,257.89
  4. Step 4: Simplify right side
    7,187.88x = 24,344,095.82
  5. Step 5: Solve for x
    x = 24,344,095.82/7,187.88
  6. Step 6: Final answer
    x = 3,386.83

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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.