Home / 3,279.92-4,910.15-2,123.24

Finding the Fourth Proportional to 3,279.92, 4,910.15 and 2,123.24

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Solution

The fourth proportional to 3,279.92, 4,910.15 and 2,123.24 is: 3,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.92 : 4,910.15 = 2,123.24 : x
  2. Step 2: Convert to fraction form
    3,279.92/4,910.15 = 2,123.24/x
  3. Step 3: Cross multiply
    3,279.92x = 4,910.15 × 2,123.24
  4. Step 4: Simplify right side
    3,279.92x = 10,425,407.64
  5. Step 5: Solve for x
    x = 10,425,407.64/3,279.92
  6. Step 6: Final answer
    x = 3,178.56

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1.5x scale

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.