Home / 3,279.29-4,918.83-1,331.44

Finding the Fourth Proportional to 3,279.29, 4,918.83 and 1,331.44

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Solution

The fourth proportional to 3,279.29, 4,918.83 and 1,331.44 is: 1,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.29 : 4,918.83 = 1,331.44 : x
  2. Step 2: Convert to fraction form
    3,279.29/4,918.83 = 1,331.44/x
  3. Step 3: Cross multiply
    3,279.29x = 4,918.83 × 1,331.44
  4. Step 4: Simplify right side
    3,279.29x = 6,549,109.73
  5. Step 5: Solve for x
    x = 6,549,109.73/3,279.29
  6. Step 6: Final answer
    x = 1,997.12

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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.