Home / 2,167.14-3,249.33-917.09

Finding the Fourth Proportional to 2,167.14, 3,249.33 and 917.09

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Solution

The fourth proportional to 2,167.14, 3,249.33 and 917.09 is: 1,375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.14 : 3,249.33 = 917.09 : x
  2. Step 2: Convert to fraction form
    2,167.14/3,249.33 = 917.09/x
  3. Step 3: Cross multiply
    2,167.14x = 3,249.33 × 917.09
  4. Step 4: Simplify right side
    2,167.14x = 2,979,911.80
  5. Step 5: Solve for x
    x = 2,979,911.80/2,167.14
  6. Step 6: Final answer
    x = 1,375.04

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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.