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Finding the Fourth Proportional to 4.27, 5.89 and 4.15

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Solution

The fourth proportional to 4.27, 5.89 and 4.15 is: 5.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.27 : 5.89 = 4.15 : x
  2. Step 2: Convert to fraction form
    4.27/5.89 = 4.15/x
  3. Step 3: Cross multiply
    4.27x = 5.89 × 4.15
  4. Step 4: Simplify right side
    4.27x = 24.44
  5. Step 5: Solve for x
    x = 24.44/4.27
  6. Step 6: Final answer
    x = 5.72

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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.