Home / 3,279.78-4,908.30-2,687.94

Finding the Fourth Proportional to 3,279.78, 4,908.30 and 2,687.94

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Solution

The fourth proportional to 3,279.78, 4,908.30 and 2,687.94 is: 4,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.78 : 4,908.30 = 2,687.94 : x
  2. Step 2: Convert to fraction form
    3,279.78/4,908.30 = 2,687.94/x
  3. Step 3: Cross multiply
    3,279.78x = 4,908.30 × 2,687.94
  4. Step 4: Simplify right side
    3,279.78x = 13,193,215.90
  5. Step 5: Solve for x
    x = 13,193,215.90/3,279.78
  6. Step 6: Final answer
    x = 4,022.59

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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.