Home / 2,279.70-3,418.02-1,169.79

Finding the Fourth Proportional to 2,279.70, 3,418.02 and 1,169.79

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Solution

The fourth proportional to 2,279.70, 3,418.02 and 1,169.79 is: 1,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.70 : 3,418.02 = 1,169.79 : x
  2. Step 2: Convert to fraction form
    2,279.70/3,418.02 = 1,169.79/x
  3. Step 3: Cross multiply
    2,279.70x = 3,418.02 × 1,169.79
  4. Step 4: Simplify right side
    2,279.70x = 3,998,365.62
  5. Step 5: Solve for x
    x = 3,998,365.62/2,279.70
  6. Step 6: Final answer
    x = 1,753.90

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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.