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Finding the Third Proportional to 671.13 and 1,067.69

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Solution

The third proportional to 671.13 and 1,067.69 is: 1,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.13 : 1,067.69 = 1,067.69 : x
  2. Step 2: Convert to fraction form
    671.13/1,067.69 = 1,067.69/x
  3. Step 3: Cross multiply
    671.13x = 1,067.69 × 1,067.69
  4. Step 4: Simplify right side
    671.13x = 1,139,956.60
  5. Step 5: Solve for x
    x = 1,139,956.60/671.13
  6. Step 6: Final answer
    x = 1,698.58

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.