Home / 6,838.38-10,257.78-2,158.43

Finding the Fourth Proportional to 6,838.38, 10,257.78 and 2,158.43

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Solution

The fourth proportional to 6,838.38, 10,257.78 and 2,158.43 is: 3,237.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,838.38 : 10,257.78 = 2,158.43 : x
  2. Step 2: Convert to fraction form
    6,838.38/10,257.78 = 2,158.43/x
  3. Step 3: Cross multiply
    6,838.38x = 10,257.78 × 2,158.43
  4. Step 4: Simplify right side
    6,838.38x = 22,140,700.09
  5. Step 5: Solve for x
    x = 22,140,700.09/6,838.38
  6. Step 6: Final answer
    x = 3,237.71

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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.