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Finding the Fourth Proportional to 6,391.23, 8,821.12 and 3,596.73

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Solution

The fourth proportional to 6,391.23, 8,821.12 and 3,596.73 is: 4,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.23 : 8,821.12 = 3,596.73 : x
  2. Step 2: Convert to fraction form
    6,391.23/8,821.12 = 3,596.73/x
  3. Step 3: Cross multiply
    6,391.23x = 8,821.12 × 3,596.73
  4. Step 4: Simplify right side
    6,391.23x = 31,727,186.94
  5. Step 5: Solve for x
    x = 31,727,186.94/6,391.23
  6. Step 6: Final answer
    x = 4,964.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.