Home / 2,131.38-3,195.25-832.55

Finding the Fourth Proportional to 2,131.38, 3,195.25 and 832.55

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Solution

The fourth proportional to 2,131.38, 3,195.25 and 832.55 is: 1,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.38 : 3,195.25 = 832.55 : x
  2. Step 2: Convert to fraction form
    2,131.38/3,195.25 = 832.55/x
  3. Step 3: Cross multiply
    2,131.38x = 3,195.25 × 832.55
  4. Step 4: Simplify right side
    2,131.38x = 2,660,187.33
  5. Step 5: Solve for x
    x = 2,660,187.33/2,131.38
  6. Step 6: Final answer
    x = 1,248.11

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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.