Home / 2,979.16-4,469.19-1,105.66

Finding the Fourth Proportional to 2,979.16, 4,469.19 and 1,105.66

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Solution

The fourth proportional to 2,979.16, 4,469.19 and 1,105.66 is: 1,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.16 : 4,469.19 = 1,105.66 : x
  2. Step 2: Convert to fraction form
    2,979.16/4,469.19 = 1,105.66/x
  3. Step 3: Cross multiply
    2,979.16x = 4,469.19 × 1,105.66
  4. Step 4: Simplify right side
    2,979.16x = 4,941,404.62
  5. Step 5: Solve for x
    x = 4,941,404.62/2,979.16
  6. Step 6: Final answer
    x = 1,658.66

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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.