Home / 3,280.89-4,921.32-1,201.04

Finding the Fourth Proportional to 3,280.89, 4,921.32 and 1,201.04

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Solution

The fourth proportional to 3,280.89, 4,921.32 and 1,201.04 is: 1,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.89 : 4,921.32 = 1,201.04 : x
  2. Step 2: Convert to fraction form
    3,280.89/4,921.32 = 1,201.04/x
  3. Step 3: Cross multiply
    3,280.89x = 4,921.32 × 1,201.04
  4. Step 4: Simplify right side
    3,280.89x = 5,910,711.47
  5. Step 5: Solve for x
    x = 5,910,711.47/3,280.89
  6. Step 6: Final answer
    x = 1,801.56

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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.