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Finding the Fourth Proportional to 2,668.58, 3,997.32 and 2,575.79

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Solution

The fourth proportional to 2,668.58, 3,997.32 and 2,575.79 is: 3,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.58 : 3,997.32 = 2,575.79 : x
  2. Step 2: Convert to fraction form
    2,668.58/3,997.32 = 2,575.79/x
  3. Step 3: Cross multiply
    2,668.58x = 3,997.32 × 2,575.79
  4. Step 4: Simplify right side
    2,668.58x = 10,296,236.90
  5. Step 5: Solve for x
    x = 10,296,236.90/2,668.58
  6. Step 6: Final answer
    x = 3,858.33

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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.