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Finding the Fourth Proportional to 6.32, 9.43 and 5.72

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Solution

The fourth proportional to 6.32, 9.43 and 5.72 is: 8.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.32 : 9.43 = 5.72 : x
  2. Step 2: Convert to fraction form
    6.32/9.43 = 5.72/x
  3. Step 3: Cross multiply
    6.32x = 9.43 × 5.72
  4. Step 4: Simplify right side
    6.32x = 53.94
  5. Step 5: Solve for x
    x = 53.94/6.32
  6. Step 6: Final answer
    x = 8.53

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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.