Home / 1,229.16-1,844.52-449.09

Finding the Fourth Proportional to 1,229.16, 1,844.52 and 449.09

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Solution

The fourth proportional to 1,229.16, 1,844.52 and 449.09 is: 673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.16 : 1,844.52 = 449.09 : x
  2. Step 2: Convert to fraction form
    1,229.16/1,844.52 = 449.09/x
  3. Step 3: Cross multiply
    1,229.16x = 1,844.52 × 449.09
  4. Step 4: Simplify right side
    1,229.16x = 828,355.49
  5. Step 5: Solve for x
    x = 828,355.49/1,229.16
  6. Step 6: Final answer
    x = 673.92

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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.