Home / 2,979.87-4,469.81-2,052.65

Finding the Fourth Proportional to 2,979.87, 4,469.81 and 2,052.65

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Solution

The fourth proportional to 2,979.87, 4,469.81 and 2,052.65 is: 3,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.87 : 4,469.81 = 2,052.65 : x
  2. Step 2: Convert to fraction form
    2,979.87/4,469.81 = 2,052.65/x
  3. Step 3: Cross multiply
    2,979.87x = 4,469.81 × 2,052.65
  4. Step 4: Simplify right side
    2,979.87x = 9,174,922.88
  5. Step 5: Solve for x
    x = 9,174,922.88/2,979.87
  6. Step 6: Final answer
    x = 3,078.97

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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.