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Finding the Fourth Proportional to 6,081.75, 9,122.14 and 1,921.88

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Solution

The fourth proportional to 6,081.75, 9,122.14 and 1,921.88 is: 2,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.75 : 9,122.14 = 1,921.88 : x
  2. Step 2: Convert to fraction form
    6,081.75/9,122.14 = 1,921.88/x
  3. Step 3: Cross multiply
    6,081.75x = 9,122.14 × 1,921.88
  4. Step 4: Simplify right side
    6,081.75x = 17,531,658.42
  5. Step 5: Solve for x
    x = 17,531,658.42/6,081.75
  6. Step 6: Final answer
    x = 2,882.67

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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.