Home / 3,279.96-4,920.44-1,331.73

Finding the Fourth Proportional to 3,279.96, 4,920.44 and 1,331.73

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Solution

The fourth proportional to 3,279.96, 4,920.44 and 1,331.73 is: 1,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.96 : 4,920.44 = 1,331.73 : x
  2. Step 2: Convert to fraction form
    3,279.96/4,920.44 = 1,331.73/x
  3. Step 3: Cross multiply
    3,279.96x = 4,920.44 × 1,331.73
  4. Step 4: Simplify right side
    3,279.96x = 6,552,690.90
  5. Step 5: Solve for x
    x = 6,552,690.90/3,279.96
  6. Step 6: Final answer
    x = 1,997.80

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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.