Home / 4,120.74-6,175.71-3,591

Finding the Fourth Proportional to 4,120.74, 6,175.71 and 3,591

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Solution

The fourth proportional to 4,120.74, 6,175.71 and 3,591 is: 5,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.74 : 6,175.71 = 3,591 : x
  2. Step 2: Convert to fraction form
    4,120.74/6,175.71 = 3,591/x
  3. Step 3: Cross multiply
    4,120.74x = 6,175.71 × 3,591
  4. Step 4: Simplify right side
    4,120.74x = 22,176,974.61
  5. Step 5: Solve for x
    x = 22,176,974.61/4,120.74
  6. Step 6: Final answer
    x = 5,381.79

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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.