Home / 5,189.43-7,781.15-3,547.97

Finding the Fourth Proportional to 5,189.43, 7,781.15 and 3,547.97

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Solution

The fourth proportional to 5,189.43, 7,781.15 and 3,547.97 is: 5,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.43 : 7,781.15 = 3,547.97 : x
  2. Step 2: Convert to fraction form
    5,189.43/7,781.15 = 3,547.97/x
  3. Step 3: Cross multiply
    5,189.43x = 7,781.15 × 3,547.97
  4. Step 4: Simplify right side
    5,189.43x = 27,607,256.73
  5. Step 5: Solve for x
    x = 27,607,256.73/5,189.43
  6. Step 6: Final answer
    x = 5,319.90

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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.