Home / 3,279.30-4,918.08-2,239.12

Finding the Fourth Proportional to 3,279.30, 4,918.08 and 2,239.12

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Solution

The fourth proportional to 3,279.30, 4,918.08 and 2,239.12 is: 3,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.30 : 4,918.08 = 2,239.12 : x
  2. Step 2: Convert to fraction form
    3,279.30/4,918.08 = 2,239.12/x
  3. Step 3: Cross multiply
    3,279.30x = 4,918.08 × 2,239.12
  4. Step 4: Simplify right side
    3,279.30x = 11,012,171.29
  5. Step 5: Solve for x
    x = 11,012,171.29/3,279.30
  6. Step 6: Final answer
    x = 3,358.09

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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.