Home / 3,908.11-5,861.67-1,097.20

Finding the Fourth Proportional to 3,908.11, 5,861.67 and 1,097.20

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Solution

The fourth proportional to 3,908.11, 5,861.67 and 1,097.20 is: 1,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.11 : 5,861.67 = 1,097.20 : x
  2. Step 2: Convert to fraction form
    3,908.11/5,861.67 = 1,097.20/x
  3. Step 3: Cross multiply
    3,908.11x = 5,861.67 × 1,097.20
  4. Step 4: Simplify right side
    3,908.11x = 6,431,424.32
  5. Step 5: Solve for x
    x = 6,431,424.32/3,908.11
  6. Step 6: Final answer
    x = 1,645.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.