Home / 6,081.24-9,121.92-1,921.18

Finding the Fourth Proportional to 6,081.24, 9,121.92 and 1,921.18

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Solution

The fourth proportional to 6,081.24, 9,121.92 and 1,921.18 is: 2,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.24 : 9,121.92 = 1,921.18 : x
  2. Step 2: Convert to fraction form
    6,081.24/9,121.92 = 1,921.18/x
  3. Step 3: Cross multiply
    6,081.24x = 9,121.92 × 1,921.18
  4. Step 4: Simplify right side
    6,081.24x = 17,524,850.27
  5. Step 5: Solve for x
    x = 17,524,850.27/6,081.24
  6. Step 6: Final answer
    x = 2,881.79

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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.