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Finding the Third Proportional to 3,511.50 and 7,801

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Solution

The third proportional to 3,511.50 and 7,801 is: 17,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.50 : 7,801 = 7,801 : x
  2. Step 2: Convert to fraction form
    3,511.50/7,801 = 7,801/x
  3. Step 3: Cross multiply
    3,511.50x = 7,801 × 7,801
  4. Step 4: Simplify right side
    3,511.50x = 60,855,601
  5. Step 5: Solve for x
    x = 60,855,601/3,511.50
  6. Step 6: Final answer
    x = 17,330.37

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.