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Finding the Fourth Proportional to 8.08, 11.08 and 8.05

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Solution

The fourth proportional to 8.08, 11.08 and 8.05 is: 11.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.08 : 11.08 = 8.05 : x
  2. Step 2: Convert to fraction form
    8.08/11.08 = 8.05/x
  3. Step 3: Cross multiply
    8.08x = 11.08 × 8.05
  4. Step 4: Simplify right side
    8.08x = 89.10
  5. Step 5: Solve for x
    x = 89.10/8.08
  6. Step 6: Final answer
    x = 11.03

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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.