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Finding the Third Proportional to 5,731 and 8,879

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Solution

The third proportional to 5,731 and 8,879 is: 13,756.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731 : 8,879 = 8,879 : x
  2. Step 2: Convert to fraction form
    5,731/8,879 = 8,879/x
  3. Step 3: Cross multiply
    5,731x = 8,879 × 8,879
  4. Step 4: Simplify right side
    5,731x = 78,836,641
  5. Step 5: Solve for x
    x = 78,836,641/5,731
  6. Step 6: Final answer
    x = 13,756.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.