Home / 3,972.20-5,481.66-2,203.84

Finding the Fourth Proportional to 3,972.20, 5,481.66 and 2,203.84

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Solution

The fourth proportional to 3,972.20, 5,481.66 and 2,203.84 is: 3,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.20 : 5,481.66 = 2,203.84 : x
  2. Step 2: Convert to fraction form
    3,972.20/5,481.66 = 2,203.84/x
  3. Step 3: Cross multiply
    3,972.20x = 5,481.66 × 2,203.84
  4. Step 4: Simplify right side
    3,972.20x = 12,080,701.57
  5. Step 5: Solve for x
    x = 12,080,701.57/3,972.20
  6. Step 6: Final answer
    x = 3,041.31

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1.5x scale

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.