Home / 3,843.52-5,763.78-1,377.60

Finding the Fourth Proportional to 3,843.52, 5,763.78 and 1,377.60

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Solution

The fourth proportional to 3,843.52, 5,763.78 and 1,377.60 is: 2,065.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.52 : 5,763.78 = 1,377.60 : x
  2. Step 2: Convert to fraction form
    3,843.52/5,763.78 = 1,377.60/x
  3. Step 3: Cross multiply
    3,843.52x = 5,763.78 × 1,377.60
  4. Step 4: Simplify right side
    3,843.52x = 7,940,183.33
  5. Step 5: Solve for x
    x = 7,940,183.33/3,843.52
  6. Step 6: Final answer
    x = 2,065.86

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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.