Home / 3,280.83-4,921.31-1,829.22

Finding the Fourth Proportional to 3,280.83, 4,921.31 and 1,829.22

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Solution

The fourth proportional to 3,280.83, 4,921.31 and 1,829.22 is: 2,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.83 : 4,921.31 = 1,829.22 : x
  2. Step 2: Convert to fraction form
    3,280.83/4,921.31 = 1,829.22/x
  3. Step 3: Cross multiply
    3,280.83x = 4,921.31 × 1,829.22
  4. Step 4: Simplify right side
    3,280.83x = 9,002,149.53
  5. Step 5: Solve for x
    x = 9,002,149.53/3,280.83
  6. Step 6: Final answer
    x = 2,743.86

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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.