Home / 3,876.26-5,811.48-1,929.83

Finding the Fourth Proportional to 3,876.26, 5,811.48 and 1,929.83

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Solution

The fourth proportional to 3,876.26, 5,811.48 and 1,929.83 is: 2,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.26 : 5,811.48 = 1,929.83 : x
  2. Step 2: Convert to fraction form
    3,876.26/5,811.48 = 1,929.83/x
  3. Step 3: Cross multiply
    3,876.26x = 5,811.48 × 1,929.83
  4. Step 4: Simplify right side
    3,876.26x = 11,215,139.39
  5. Step 5: Solve for x
    x = 11,215,139.39/3,876.26
  6. Step 6: Final answer
    x = 2,893.29

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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.