Home / 3,578.28-5,366.61-1,269.78

Finding the Fourth Proportional to 3,578.28, 5,366.61 and 1,269.78

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Solution

The fourth proportional to 3,578.28, 5,366.61 and 1,269.78 is: 1,904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.28 : 5,366.61 = 1,269.78 : x
  2. Step 2: Convert to fraction form
    3,578.28/5,366.61 = 1,269.78/x
  3. Step 3: Cross multiply
    3,578.28x = 5,366.61 × 1,269.78
  4. Step 4: Simplify right side
    3,578.28x = 6,814,414.05
  5. Step 5: Solve for x
    x = 6,814,414.05/3,578.28
  6. Step 6: Final answer
    x = 1,904.38

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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.