Home / 2,781.92-4,169.24-1,794.42

Finding the Fourth Proportional to 2,781.92, 4,169.24 and 1,794.42

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Solution

The fourth proportional to 2,781.92, 4,169.24 and 1,794.42 is: 2,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.92 : 4,169.24 = 1,794.42 : x
  2. Step 2: Convert to fraction form
    2,781.92/4,169.24 = 1,794.42/x
  3. Step 3: Cross multiply
    2,781.92x = 4,169.24 × 1,794.42
  4. Step 4: Simplify right side
    2,781.92x = 7,481,367.64
  5. Step 5: Solve for x
    x = 7,481,367.64/2,781.92
  6. Step 6: Final answer
    x = 2,689.28

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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.