Home / 3,382.92-5,074.74-1,921.68

Finding the Fourth Proportional to 3,382.92, 5,074.74 and 1,921.68

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Solution

The fourth proportional to 3,382.92, 5,074.74 and 1,921.68 is: 2,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.92 : 5,074.74 = 1,921.68 : x
  2. Step 2: Convert to fraction form
    3,382.92/5,074.74 = 1,921.68/x
  3. Step 3: Cross multiply
    3,382.92x = 5,074.74 × 1,921.68
  4. Step 4: Simplify right side
    3,382.92x = 9,752,026.36
  5. Step 5: Solve for x
    x = 9,752,026.36/3,382.92
  6. Step 6: Final answer
    x = 2,882.72

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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.