Home / 3,319.28-4,977.36-2,279.44

Finding the Fourth Proportional to 3,319.28, 4,977.36 and 2,279.44

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Solution

The fourth proportional to 3,319.28, 4,977.36 and 2,279.44 is: 3,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.28 : 4,977.36 = 2,279.44 : x
  2. Step 2: Convert to fraction form
    3,319.28/4,977.36 = 2,279.44/x
  3. Step 3: Cross multiply
    3,319.28x = 4,977.36 × 2,279.44
  4. Step 4: Simplify right side
    3,319.28x = 11,345,593.48
  5. Step 5: Solve for x
    x = 11,345,593.48/3,319.28
  6. Step 6: Final answer
    x = 3,418.09

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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.