Home / 2,201.25-3,299.60-739.91

Finding the Fourth Proportional to 2,201.25, 3,299.60 and 739.91

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Solution

The fourth proportional to 2,201.25, 3,299.60 and 739.91 is: 1,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.25 : 3,299.60 = 739.91 : x
  2. Step 2: Convert to fraction form
    2,201.25/3,299.60 = 739.91/x
  3. Step 3: Cross multiply
    2,201.25x = 3,299.60 × 739.91
  4. Step 4: Simplify right side
    2,201.25x = 2,441,407.04
  5. Step 5: Solve for x
    x = 2,441,407.04/2,201.25
  6. Step 6: Final answer
    x = 1,109.10

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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.