Home / 3,422.28-5,133.80-1,231.88

Finding the Fourth Proportional to 3,422.28, 5,133.80 and 1,231.88

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Solution

The fourth proportional to 3,422.28, 5,133.80 and 1,231.88 is: 1,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.28 : 5,133.80 = 1,231.88 : x
  2. Step 2: Convert to fraction form
    3,422.28/5,133.80 = 1,231.88/x
  3. Step 3: Cross multiply
    3,422.28x = 5,133.80 × 1,231.88
  4. Step 4: Simplify right side
    3,422.28x = 6,324,225.54
  5. Step 5: Solve for x
    x = 6,324,225.54/3,422.28
  6. Step 6: Final answer
    x = 1,847.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.