Home / 1,951.26-2,691.72-1,321.83

Finding the Fourth Proportional to 1,951.26, 2,691.72 and 1,321.83

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Solution

The fourth proportional to 1,951.26, 2,691.72 and 1,321.83 is: 1,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.26 : 2,691.72 = 1,321.83 : x
  2. Step 2: Convert to fraction form
    1,951.26/2,691.72 = 1,321.83/x
  3. Step 3: Cross multiply
    1,951.26x = 2,691.72 × 1,321.83
  4. Step 4: Simplify right side
    1,951.26x = 3,557,996.25
  5. Step 5: Solve for x
    x = 3,557,996.25/1,951.26
  6. Step 6: Final answer
    x = 1,823.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.