Home / 3,980.44-5,493.20-2,211.96

Finding the Fourth Proportional to 3,980.44, 5,493.20 and 2,211.96

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Solution

The fourth proportional to 3,980.44, 5,493.20 and 2,211.96 is: 3,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.44 : 5,493.20 = 2,211.96 : x
  2. Step 2: Convert to fraction form
    3,980.44/5,493.20 = 2,211.96/x
  3. Step 3: Cross multiply
    3,980.44x = 5,493.20 × 2,211.96
  4. Step 4: Simplify right side
    3,980.44x = 12,150,738.67
  5. Step 5: Solve for x
    x = 12,150,738.67/3,980.44
  6. Step 6: Final answer
    x = 3,052.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.