Home / 3,972.30-5,481.54-2,203.80

Finding the Fourth Proportional to 3,972.30, 5,481.54 and 2,203.80

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Solution

The fourth proportional to 3,972.30, 5,481.54 and 2,203.80 is: 3,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.30 : 5,481.54 = 2,203.80 : x
  2. Step 2: Convert to fraction form
    3,972.30/5,481.54 = 2,203.80/x
  3. Step 3: Cross multiply
    3,972.30x = 5,481.54 × 2,203.80
  4. Step 4: Simplify right side
    3,972.30x = 12,080,217.85
  5. Step 5: Solve for x
    x = 12,080,217.85/3,972.30
  6. Step 6: Final answer
    x = 3,041.11

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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.