Home / 6,081.15-9,121.74-1,921.47

Finding the Fourth Proportional to 6,081.15, 9,121.74 and 1,921.47

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Solution

The fourth proportional to 6,081.15, 9,121.74 and 1,921.47 is: 2,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.15 : 9,121.74 = 1,921.47 : x
  2. Step 2: Convert to fraction form
    6,081.15/9,121.74 = 1,921.47/x
  3. Step 3: Cross multiply
    6,081.15x = 9,121.74 × 1,921.47
  4. Step 4: Simplify right side
    6,081.15x = 17,527,149.76
  5. Step 5: Solve for x
    x = 17,527,149.76/6,081.15
  6. Step 6: Final answer
    x = 2,882.21

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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.