Home / 3,972.06-5,481.36-2,203.56

Finding the Fourth Proportional to 3,972.06, 5,481.36 and 2,203.56

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Solution

The fourth proportional to 3,972.06, 5,481.36 and 2,203.56 is: 3,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.06 : 5,481.36 = 2,203.56 : x
  2. Step 2: Convert to fraction form
    3,972.06/5,481.36 = 2,203.56/x
  3. Step 3: Cross multiply
    3,972.06x = 5,481.36 × 2,203.56
  4. Step 4: Simplify right side
    3,972.06x = 12,078,505.64
  5. Step 5: Solve for x
    x = 12,078,505.64/3,972.06
  6. Step 6: Final answer
    x = 3,040.87

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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.