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Finding the Fourth Proportional to 34.48, 51.68 and 26.88

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Solution

The fourth proportional to 34.48, 51.68 and 26.88 is: 40.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.48 : 51.68 = 26.88 : x
  2. Step 2: Convert to fraction form
    34.48/51.68 = 26.88/x
  3. Step 3: Cross multiply
    34.48x = 51.68 × 26.88
  4. Step 4: Simplify right side
    34.48x = 1,389.16
  5. Step 5: Solve for x
    x = 1,389.16/34.48
  6. Step 6: Final answer
    x = 40.29

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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.