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Finding the Third Proportional to 3,551.75 and 7,808.75

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Solution

The third proportional to 3,551.75 and 7,808.75 is: 17,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.75 : 7,808.75 = 7,808.75 : x
  2. Step 2: Convert to fraction form
    3,551.75/7,808.75 = 7,808.75/x
  3. Step 3: Cross multiply
    3,551.75x = 7,808.75 × 7,808.75
  4. Step 4: Simplify right side
    3,551.75x = 60,976,576.56
  5. Step 5: Solve for x
    x = 60,976,576.56/3,551.75
  6. Step 6: Final answer
    x = 17,168.04

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.