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Finding the Third Proportional to 801 and 1,842.50

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Solution

The third proportional to 801 and 1,842.50 is: 4,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    801 : 1,842.50 = 1,842.50 : x
  2. Step 2: Convert to fraction form
    801/1,842.50 = 1,842.50/x
  3. Step 3: Cross multiply
    801x = 1,842.50 × 1,842.50
  4. Step 4: Simplify right side
    801x = 3,394,806.25
  5. Step 5: Solve for x
    x = 3,394,806.25/801
  6. Step 6: Final answer
    x = 4,238.21

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.