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Finding the Fourth Proportional to 26.78, 36.94 and 26.26

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Solution

The fourth proportional to 26.78, 36.94 and 26.26 is: 36.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.78 : 36.94 = 26.26 : x
  2. Step 2: Convert to fraction form
    26.78/36.94 = 26.26/x
  3. Step 3: Cross multiply
    26.78x = 36.94 × 26.26
  4. Step 4: Simplify right side
    26.78x = 969.98
  5. Step 5: Solve for x
    x = 969.98/26.78
  6. Step 6: Final answer
    x = 36.23

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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.