Home / 4,151.32-6,222.78-2,691.40

Finding the Fourth Proportional to 4,151.32, 6,222.78 and 2,691.40

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Solution

The fourth proportional to 4,151.32, 6,222.78 and 2,691.40 is: 4,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.32 : 6,222.78 = 2,691.40 : x
  2. Step 2: Convert to fraction form
    4,151.32/6,222.78 = 2,691.40/x
  3. Step 3: Cross multiply
    4,151.32x = 6,222.78 × 2,691.40
  4. Step 4: Simplify right side
    4,151.32x = 16,747,990.09
  5. Step 5: Solve for x
    x = 16,747,990.09/4,151.32
  6. Step 6: Final answer
    x = 4,034.38

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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.