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Finding the Fourth Proportional to 3,661.05, 5,052 and 2,089.11

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Solution

The fourth proportional to 3,661.05, 5,052 and 2,089.11 is: 2,882.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.05 : 5,052 = 2,089.11 : x
  2. Step 2: Convert to fraction form
    3,661.05/5,052 = 2,089.11/x
  3. Step 3: Cross multiply
    3,661.05x = 5,052 × 2,089.11
  4. Step 4: Simplify right side
    3,661.05x = 10,554,183.72
  5. Step 5: Solve for x
    x = 10,554,183.72/3,661.05
  6. Step 6: Final answer
    x = 2,882.83

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Why These Related Problems?

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