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Finding the Third Proportional to 843.38 and 1,814.25

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Solution

The third proportional to 843.38 and 1,814.25 is: 3,902.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    843.38 : 1,814.25 = 1,814.25 : x
  2. Step 2: Convert to fraction form
    843.38/1,814.25 = 1,814.25/x
  3. Step 3: Cross multiply
    843.38x = 1,814.25 × 1,814.25
  4. Step 4: Simplify right side
    843.38x = 3,291,503.06
  5. Step 5: Solve for x
    x = 3,291,503.06/843.38
  6. Step 6: Final answer
    x = 3,902.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.