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Finding the Fourth Proportional to 4.11, 5.69 and 3.36

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Solution

The fourth proportional to 4.11, 5.69 and 3.36 is: 4.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.11 : 5.69 = 3.36 : x
  2. Step 2: Convert to fraction form
    4.11/5.69 = 3.36/x
  3. Step 3: Cross multiply
    4.11x = 5.69 × 3.36
  4. Step 4: Simplify right side
    4.11x = 19.10
  5. Step 5: Solve for x
    x = 19.10/4.11
  6. Step 6: Final answer
    x = 4.65

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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.