Home / 3,876.91-5,350.16-2,108.52

Finding the Fourth Proportional to 3,876.91, 5,350.16 and 2,108.52

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Solution

The fourth proportional to 3,876.91, 5,350.16 and 2,108.52 is: 2,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.91 : 5,350.16 = 2,108.52 : x
  2. Step 2: Convert to fraction form
    3,876.91/5,350.16 = 2,108.52/x
  3. Step 3: Cross multiply
    3,876.91x = 5,350.16 × 2,108.52
  4. Step 4: Simplify right side
    3,876.91x = 11,280,924.63
  5. Step 5: Solve for x
    x = 11,280,924.63/3,876.91
  6. Step 6: Final answer
    x = 2,909.77

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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.