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Finding the Third Proportional to 837.21 and 1,842.43

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Solution

The third proportional to 837.21 and 1,842.43 is: 4,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.21 : 1,842.43 = 1,842.43 : x
  2. Step 2: Convert to fraction form
    837.21/1,842.43 = 1,842.43/x
  3. Step 3: Cross multiply
    837.21x = 1,842.43 × 1,842.43
  4. Step 4: Simplify right side
    837.21x = 3,394,561.55
  5. Step 5: Solve for x
    x = 3,394,561.55/837.21
  6. Step 6: Final answer
    x = 4,054.61

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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.