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Finding the Fourth Proportional to 3,882.93, 5,820.29 and 2,786.69

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Solution

The fourth proportional to 3,882.93, 5,820.29 and 2,786.69 is: 4,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.93 : 5,820.29 = 2,786.69 : x
  2. Step 2: Convert to fraction form
    3,882.93/5,820.29 = 2,786.69/x
  3. Step 3: Cross multiply
    3,882.93x = 5,820.29 × 2,786.69
  4. Step 4: Simplify right side
    3,882.93x = 16,219,343.94
  5. Step 5: Solve for x
    x = 16,219,343.94/3,882.93
  6. Step 6: Final answer
    x = 4,177.09

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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.