Home / 3,581.25-4,942.13-2,009.31

Finding the Fourth Proportional to 3,581.25, 4,942.13 and 2,009.31

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Solution

The fourth proportional to 3,581.25, 4,942.13 and 2,009.31 is: 2,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.25 : 4,942.13 = 2,009.31 : x
  2. Step 2: Convert to fraction form
    3,581.25/4,942.13 = 2,009.31/x
  3. Step 3: Cross multiply
    3,581.25x = 4,942.13 × 2,009.31
  4. Step 4: Simplify right side
    3,581.25x = 9,930,261.18
  5. Step 5: Solve for x
    x = 9,930,261.18/3,581.25
  6. Step 6: Final answer
    x = 2,772.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.