Home / 3,979.32-5,969.94-1,382.52

Finding the Fourth Proportional to 3,979.32, 5,969.94 and 1,382.52

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Solution

The fourth proportional to 3,979.32, 5,969.94 and 1,382.52 is: 2,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.32 : 5,969.94 = 1,382.52 : x
  2. Step 2: Convert to fraction form
    3,979.32/5,969.94 = 1,382.52/x
  3. Step 3: Cross multiply
    3,979.32x = 5,969.94 × 1,382.52
  4. Step 4: Simplify right side
    3,979.32x = 8,253,561.45
  5. Step 5: Solve for x
    x = 8,253,561.45/3,979.32
  6. Step 6: Final answer
    x = 2,074.11

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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.