Home / 6,131.28-9,191.40-2,431.68

Finding the Fourth Proportional to 6,131.28, 9,191.40 and 2,431.68

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Solution

The fourth proportional to 6,131.28, 9,191.40 and 2,431.68 is: 3,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.28 : 9,191.40 = 2,431.68 : x
  2. Step 2: Convert to fraction form
    6,131.28/9,191.40 = 2,431.68/x
  3. Step 3: Cross multiply
    6,131.28x = 9,191.40 × 2,431.68
  4. Step 4: Simplify right side
    6,131.28x = 22,350,543.55
  5. Step 5: Solve for x
    x = 22,350,543.55/6,131.28
  6. Step 6: Final answer
    x = 3,645.33

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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.