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Finding the Fourth Proportional to 6,616.65, 9,131.10 and 3,632.61

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Solution

The fourth proportional to 6,616.65, 9,131.10 and 3,632.61 is: 5,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.65 : 9,131.10 = 3,632.61 : x
  2. Step 2: Convert to fraction form
    6,616.65/9,131.10 = 3,632.61/x
  3. Step 3: Cross multiply
    6,616.65x = 9,131.10 × 3,632.61
  4. Step 4: Simplify right side
    6,616.65x = 33,169,745.79
  5. Step 5: Solve for x
    x = 33,169,745.79/6,616.65
  6. Step 6: Final answer
    x = 5,013.07

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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.