Home / 3,839.28-5,759.76-1,242.18

Finding the Fourth Proportional to 3,839.28, 5,759.76 and 1,242.18

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Solution

The fourth proportional to 3,839.28, 5,759.76 and 1,242.18 is: 1,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.28 : 5,759.76 = 1,242.18 : x
  2. Step 2: Convert to fraction form
    3,839.28/5,759.76 = 1,242.18/x
  3. Step 3: Cross multiply
    3,839.28x = 5,759.76 × 1,242.18
  4. Step 4: Simplify right side
    3,839.28x = 7,154,658.68
  5. Step 5: Solve for x
    x = 7,154,658.68/3,839.28
  6. Step 6: Final answer
    x = 1,863.54

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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.