Home / 5,387.97-8,079.09-2,097.75

Finding the Fourth Proportional to 5,387.97, 8,079.09 and 2,097.75

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Solution

The fourth proportional to 5,387.97, 8,079.09 and 2,097.75 is: 3,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.97 : 8,079.09 = 2,097.75 : x
  2. Step 2: Convert to fraction form
    5,387.97/8,079.09 = 2,097.75/x
  3. Step 3: Cross multiply
    5,387.97x = 8,079.09 × 2,097.75
  4. Step 4: Simplify right side
    5,387.97x = 16,947,911.05
  5. Step 5: Solve for x
    x = 16,947,911.05/5,387.97
  6. Step 6: Final answer
    x = 3,145.51

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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.