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Finding the Third Proportional to 3,166.50 and 5,120.25

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Solution

The third proportional to 3,166.50 and 5,120.25 is: 8,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.50 : 5,120.25 = 5,120.25 : x
  2. Step 2: Convert to fraction form
    3,166.50/5,120.25 = 5,120.25/x
  3. Step 3: Cross multiply
    3,166.50x = 5,120.25 × 5,120.25
  4. Step 4: Simplify right side
    3,166.50x = 26,216,960.06
  5. Step 5: Solve for x
    x = 26,216,960.06/3,166.50
  6. Step 6: Final answer
    x = 8,279.48

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.