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Finding the Fourth Proportional to 6,081.52, 9,121.82 and 1,921.68

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Solution

The fourth proportional to 6,081.52, 9,121.82 and 1,921.68 is: 2,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.52 : 9,121.82 = 1,921.68 : x
  2. Step 2: Convert to fraction form
    6,081.52/9,121.82 = 1,921.68/x
  3. Step 3: Cross multiply
    6,081.52x = 9,121.82 × 1,921.68
  4. Step 4: Simplify right side
    6,081.52x = 17,529,219.06
  5. Step 5: Solve for x
    x = 17,529,219.06/6,081.52
  6. Step 6: Final answer
    x = 2,882.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.