Home / 2,979.92-4,469.26-1,223.21

Finding the Fourth Proportional to 2,979.92, 4,469.26 and 1,223.21

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Solution

The fourth proportional to 2,979.92, 4,469.26 and 1,223.21 is: 1,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.92 : 4,469.26 = 1,223.21 : x
  2. Step 2: Convert to fraction form
    2,979.92/4,469.26 = 1,223.21/x
  3. Step 3: Cross multiply
    2,979.92x = 4,469.26 × 1,223.21
  4. Step 4: Simplify right side
    2,979.92x = 5,466,821.18
  5. Step 5: Solve for x
    x = 5,466,821.18/2,979.92
  6. Step 6: Final answer
    x = 1,834.56

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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.