Home / 3,976.40-5,487.17-2,207.94

Finding the Fourth Proportional to 3,976.40, 5,487.17 and 2,207.94

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Solution

The fourth proportional to 3,976.40, 5,487.17 and 2,207.94 is: 3,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.40 : 5,487.17 = 2,207.94 : x
  2. Step 2: Convert to fraction form
    3,976.40/5,487.17 = 2,207.94/x
  3. Step 3: Cross multiply
    3,976.40x = 5,487.17 × 2,207.94
  4. Step 4: Simplify right side
    3,976.40x = 12,115,331.09
  5. Step 5: Solve for x
    x = 12,115,331.09/3,976.40
  6. Step 6: Final answer
    x = 3,046.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.