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Finding the Third Proportional to 869.06 and 1,344.38

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Solution

The third proportional to 869.06 and 1,344.38 is: 2,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    869.06 : 1,344.38 = 1,344.38 : x
  2. Step 2: Convert to fraction form
    869.06/1,344.38 = 1,344.38/x
  3. Step 3: Cross multiply
    869.06x = 1,344.38 × 1,344.38
  4. Step 4: Simplify right side
    869.06x = 1,807,344.14
  5. Step 5: Solve for x
    x = 1,807,344.14/869.06
  6. Step 6: Final answer
    x = 2,079.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.