Home / 2,979.36-4,469.08-1,129.97

Finding the Fourth Proportional to 2,979.36, 4,469.08 and 1,129.97

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Solution

The fourth proportional to 2,979.36, 4,469.08 and 1,129.97 is: 1,694.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.36 : 4,469.08 = 1,129.97 : x
  2. Step 2: Convert to fraction form
    2,979.36/4,469.08 = 1,129.97/x
  3. Step 3: Cross multiply
    2,979.36x = 4,469.08 × 1,129.97
  4. Step 4: Simplify right side
    2,979.36x = 5,049,926.33
  5. Step 5: Solve for x
    x = 5,049,926.33/2,979.36
  6. Step 6: Final answer
    x = 1,694.97

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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.