Home / 3,971.80-5,481.42-2,203.96

Finding the Fourth Proportional to 3,971.80, 5,481.42 and 2,203.96

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Solution

The fourth proportional to 3,971.80, 5,481.42 and 2,203.96 is: 3,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.80 : 5,481.42 = 2,203.96 : x
  2. Step 2: Convert to fraction form
    3,971.80/5,481.42 = 2,203.96/x
  3. Step 3: Cross multiply
    3,971.80x = 5,481.42 × 2,203.96
  4. Step 4: Simplify right side
    3,971.80x = 12,080,830.42
  5. Step 5: Solve for x
    x = 12,080,830.42/3,971.80
  6. Step 6: Final answer
    x = 3,041.65

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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.