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Finding the Fourth Proportional to 3,579.39, 5,375.16 and 2,195.51

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Solution

The fourth proportional to 3,579.39, 5,375.16 and 2,195.51 is: 3,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.39 : 5,375.16 = 2,195.51 : x
  2. Step 2: Convert to fraction form
    3,579.39/5,375.16 = 2,195.51/x
  3. Step 3: Cross multiply
    3,579.39x = 5,375.16 × 2,195.51
  4. Step 4: Simplify right side
    3,579.39x = 11,801,190.66
  5. Step 5: Solve for x
    x = 11,801,190.66/3,579.39
  6. Step 6: Final answer
    x = 3,296.98

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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.