Home / 3,961.70-5,467.12-2,193.28

Finding the Fourth Proportional to 3,961.70, 5,467.12 and 2,193.28

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Solution

The fourth proportional to 3,961.70, 5,467.12 and 2,193.28 is: 3,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.70 : 5,467.12 = 2,193.28 : x
  2. Step 2: Convert to fraction form
    3,961.70/5,467.12 = 2,193.28/x
  3. Step 3: Cross multiply
    3,961.70x = 5,467.12 × 2,193.28
  4. Step 4: Simplify right side
    3,961.70x = 11,990,924.95
  5. Step 5: Solve for x
    x = 11,990,924.95/3,961.70
  6. Step 6: Final answer
    x = 3,026.71

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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.