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Finding the Fourth Proportional to 6.32, 9.41 and 6.31

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Solution

The fourth proportional to 6.32, 9.41 and 6.31 is: 9.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.32 : 9.41 = 6.31 : x
  2. Step 2: Convert to fraction form
    6.32/9.41 = 6.31/x
  3. Step 3: Cross multiply
    6.32x = 9.41 × 6.31
  4. Step 4: Simplify right side
    6.32x = 59.38
  5. Step 5: Solve for x
    x = 59.38/6.32
  6. Step 6: Final answer
    x = 9.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.