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Finding the Fourth Proportional to 26.97, 36.99 and 26.09

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Solution

The fourth proportional to 26.97, 36.99 and 26.09 is: 35.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.97 : 36.99 = 26.09 : x
  2. Step 2: Convert to fraction form
    26.97/36.99 = 26.09/x
  3. Step 3: Cross multiply
    26.97x = 36.99 × 26.09
  4. Step 4: Simplify right side
    26.97x = 964.88
  5. Step 5: Solve for x
    x = 964.88/26.97
  6. Step 6: Final answer
    x = 35.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.