Home / 2,131.11-3,197.21-832.14

Finding the Fourth Proportional to 2,131.11, 3,197.21 and 832.14

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Solution

The fourth proportional to 2,131.11, 3,197.21 and 832.14 is: 1,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.11 : 3,197.21 = 832.14 : x
  2. Step 2: Convert to fraction form
    2,131.11/3,197.21 = 832.14/x
  3. Step 3: Cross multiply
    2,131.11x = 3,197.21 × 832.14
  4. Step 4: Simplify right side
    2,131.11x = 2,660,522.17
  5. Step 5: Solve for x
    x = 2,660,522.17/2,131.11
  6. Step 6: Final answer
    x = 1,248.42

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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.