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Finding the Fourth Proportional to 6.14, 8.48 and 3.55

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Solution

The fourth proportional to 6.14, 8.48 and 3.55 is: 4.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.14 : 8.48 = 3.55 : x
  2. Step 2: Convert to fraction form
    6.14/8.48 = 3.55/x
  3. Step 3: Cross multiply
    6.14x = 8.48 × 3.55
  4. Step 4: Simplify right side
    6.14x = 30.14
  5. Step 5: Solve for x
    x = 30.14/6.14
  6. Step 6: Final answer
    x = 4.90

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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.