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Finding the Third Proportional to 834.38 and 1,297.88

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Solution

The third proportional to 834.38 and 1,297.88 is: 2,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.38 : 1,297.88 = 1,297.88 : x
  2. Step 2: Convert to fraction form
    834.38/1,297.88 = 1,297.88/x
  3. Step 3: Cross multiply
    834.38x = 1,297.88 × 1,297.88
  4. Step 4: Simplify right side
    834.38x = 1,684,479.52
  5. Step 5: Solve for x
    x = 1,684,479.52/834.38
  6. Step 6: Final answer
    x = 2,018.85

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.