Home / 2,132.10-3,198.60-671.25

Finding the Fourth Proportional to 2,132.10, 3,198.60 and 671.25

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Solution

The fourth proportional to 2,132.10, 3,198.60 and 671.25 is: 1,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.10 : 3,198.60 = 671.25 : x
  2. Step 2: Convert to fraction form
    2,132.10/3,198.60 = 671.25/x
  3. Step 3: Cross multiply
    2,132.10x = 3,198.60 × 671.25
  4. Step 4: Simplify right side
    2,132.10x = 2,147,060.25
  5. Step 5: Solve for x
    x = 2,147,060.25/2,132.10
  6. Step 6: Final answer
    x = 1,007.02

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1.5x scale

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.