Home / 2,132.14-3,198.19-671.41

Finding the Fourth Proportional to 2,132.14, 3,198.19 and 671.41

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Solution

The fourth proportional to 2,132.14, 3,198.19 and 671.41 is: 1,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.14 : 3,198.19 = 671.41 : x
  2. Step 2: Convert to fraction form
    2,132.14/3,198.19 = 671.41/x
  3. Step 3: Cross multiply
    2,132.14x = 3,198.19 × 671.41
  4. Step 4: Simplify right side
    2,132.14x = 2,147,296.75
  5. Step 5: Solve for x
    x = 2,147,296.75/2,132.14
  6. Step 6: Final answer
    x = 1,007.11

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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.