Home / 3,419.27-4,718.52-2,002.78

Finding the Fourth Proportional to 3,419.27, 4,718.52 and 2,002.78

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Solution

The fourth proportional to 3,419.27, 4,718.52 and 2,002.78 is: 2,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.27 : 4,718.52 = 2,002.78 : x
  2. Step 2: Convert to fraction form
    3,419.27/4,718.52 = 2,002.78/x
  3. Step 3: Cross multiply
    3,419.27x = 4,718.52 × 2,002.78
  4. Step 4: Simplify right side
    3,419.27x = 9,450,147.47
  5. Step 5: Solve for x
    x = 9,450,147.47/3,419.27
  6. Step 6: Final answer
    x = 2,763.79

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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.