Home / 3,906.18-5,390.64-2,227.29

Finding the Fourth Proportional to 3,906.18, 5,390.64 and 2,227.29

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Solution

The fourth proportional to 3,906.18, 5,390.64 and 2,227.29 is: 3,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.18 : 5,390.64 = 2,227.29 : x
  2. Step 2: Convert to fraction form
    3,906.18/5,390.64 = 2,227.29/x
  3. Step 3: Cross multiply
    3,906.18x = 5,390.64 × 2,227.29
  4. Step 4: Simplify right side
    3,906.18x = 12,006,518.57
  5. Step 5: Solve for x
    x = 12,006,518.57/3,906.18
  6. Step 6: Final answer
    x = 3,073.72

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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.