Home / 3,382.68-5,073.60-1,921.70

Finding the Fourth Proportional to 3,382.68, 5,073.60 and 1,921.70

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Solution

The fourth proportional to 3,382.68, 5,073.60 and 1,921.70 is: 2,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.68 : 5,073.60 = 1,921.70 : x
  2. Step 2: Convert to fraction form
    3,382.68/5,073.60 = 1,921.70/x
  3. Step 3: Cross multiply
    3,382.68x = 5,073.60 × 1,921.70
  4. Step 4: Simplify right side
    3,382.68x = 9,749,937.12
  5. Step 5: Solve for x
    x = 9,749,937.12/3,382.68
  6. Step 6: Final answer
    x = 2,882.31

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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.