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Finding the Third Proportional to 3,407.25 and 5,209.88

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Solution

The third proportional to 3,407.25 and 5,209.88 is: 7,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.25 : 5,209.88 = 5,209.88 : x
  2. Step 2: Convert to fraction form
    3,407.25/5,209.88 = 5,209.88/x
  3. Step 3: Cross multiply
    3,407.25x = 5,209.88 × 5,209.88
  4. Step 4: Simplify right side
    3,407.25x = 27,142,797.52
  5. Step 5: Solve for x
    x = 27,142,797.52/3,407.25
  6. Step 6: Final answer
    x = 7,966.19

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.