Home / 8,781.37-13,171.91-2,207.57

Finding the Fourth Proportional to 8,781.37, 13,171.91 and 2,207.57

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Solution

The fourth proportional to 8,781.37, 13,171.91 and 2,207.57 is: 3,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.37 : 13,171.91 = 2,207.57 : x
  2. Step 2: Convert to fraction form
    8,781.37/13,171.91 = 2,207.57/x
  3. Step 3: Cross multiply
    8,781.37x = 13,171.91 × 2,207.57
  4. Step 4: Simplify right side
    8,781.37x = 29,077,836.46
  5. Step 5: Solve for x
    x = 29,077,836.46/8,781.37
  6. Step 6: Final answer
    x = 3,311.31

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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.