Home / 1,379.39-2,067.24-1,149.74

Finding the Fourth Proportional to 1,379.39, 2,067.24 and 1,149.74

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Solution

The fourth proportional to 1,379.39, 2,067.24 and 1,149.74 is: 1,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.39 : 2,067.24 = 1,149.74 : x
  2. Step 2: Convert to fraction form
    1,379.39/2,067.24 = 1,149.74/x
  3. Step 3: Cross multiply
    1,379.39x = 2,067.24 × 1,149.74
  4. Step 4: Simplify right side
    1,379.39x = 2,376,788.52
  5. Step 5: Solve for x
    x = 2,376,788.52/1,379.39
  6. Step 6: Final answer
    x = 1,723.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.