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Finding the Fourth Proportional to 5.72, 8.63 and 5.44

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Solution

The fourth proportional to 5.72, 8.63 and 5.44 is: 8.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.72 : 8.63 = 5.44 : x
  2. Step 2: Convert to fraction form
    5.72/8.63 = 5.44/x
  3. Step 3: Cross multiply
    5.72x = 8.63 × 5.44
  4. Step 4: Simplify right side
    5.72x = 46.95
  5. Step 5: Solve for x
    x = 46.95/5.72
  6. Step 6: Final answer
    x = 8.21

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.