Home / 3,841.05-5,761.71-1,243.92

Finding the Fourth Proportional to 3,841.05, 5,761.71 and 1,243.92

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Solution

The fourth proportional to 3,841.05, 5,761.71 and 1,243.92 is: 1,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.05 : 5,761.71 = 1,243.92 : x
  2. Step 2: Convert to fraction form
    3,841.05/5,761.71 = 1,243.92/x
  3. Step 3: Cross multiply
    3,841.05x = 5,761.71 × 1,243.92
  4. Step 4: Simplify right side
    3,841.05x = 7,167,106.30
  5. Step 5: Solve for x
    x = 7,167,106.30/3,841.05
  6. Step 6: Final answer
    x = 1,865.92

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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.