Home / 3,242.28-4,860.90-1,391.88

Finding the Fourth Proportional to 3,242.28, 4,860.90 and 1,391.88

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Solution

The fourth proportional to 3,242.28, 4,860.90 and 1,391.88 is: 2,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.28 : 4,860.90 = 1,391.88 : x
  2. Step 2: Convert to fraction form
    3,242.28/4,860.90 = 1,391.88/x
  3. Step 3: Cross multiply
    3,242.28x = 4,860.90 × 1,391.88
  4. Step 4: Simplify right side
    3,242.28x = 6,765,789.49
  5. Step 5: Solve for x
    x = 6,765,789.49/3,242.28
  6. Step 6: Final answer
    x = 2,086.74

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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.