Home / 5,249.65-7,244.60-2,891.79

Finding the Fourth Proportional to 5,249.65, 7,244.60 and 2,891.79

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Solution

The fourth proportional to 5,249.65, 7,244.60 and 2,891.79 is: 3,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.65 : 7,244.60 = 2,891.79 : x
  2. Step 2: Convert to fraction form
    5,249.65/7,244.60 = 2,891.79/x
  3. Step 3: Cross multiply
    5,249.65x = 7,244.60 × 2,891.79
  4. Step 4: Simplify right side
    5,249.65x = 20,949,849.16
  5. Step 5: Solve for x
    x = 20,949,849.16/5,249.65
  6. Step 6: Final answer
    x = 3,990.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.