Home / 3,876.23-5,349.22-2,107.83

Finding the Fourth Proportional to 3,876.23, 5,349.22 and 2,107.83

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Solution

The fourth proportional to 3,876.23, 5,349.22 and 2,107.83 is: 2,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.23 : 5,349.22 = 2,107.83 : x
  2. Step 2: Convert to fraction form
    3,876.23/5,349.22 = 2,107.83/x
  3. Step 3: Cross multiply
    3,876.23x = 5,349.22 × 2,107.83
  4. Step 4: Simplify right side
    3,876.23x = 11,275,246.39
  5. Step 5: Solve for x
    x = 11,275,246.39/3,876.23
  6. Step 6: Final answer
    x = 2,908.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.