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Finding the Fourth Proportional to 6.02, 8.31 and 4.92

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Solution

The fourth proportional to 6.02, 8.31 and 4.92 is: 6.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.02 : 8.31 = 4.92 : x
  2. Step 2: Convert to fraction form
    6.02/8.31 = 4.92/x
  3. Step 3: Cross multiply
    6.02x = 8.31 × 4.92
  4. Step 4: Simplify right side
    6.02x = 40.86
  5. Step 5: Solve for x
    x = 40.86/6.02
  6. Step 6: Final answer
    x = 6.79

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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.