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Finding the Fourth Proportional to 2,055.56, 3,082.11 and 868.19

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Solution

The fourth proportional to 2,055.56, 3,082.11 and 868.19 is: 1,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.56 : 3,082.11 = 868.19 : x
  2. Step 2: Convert to fraction form
    2,055.56/3,082.11 = 868.19/x
  3. Step 3: Cross multiply
    2,055.56x = 3,082.11 × 868.19
  4. Step 4: Simplify right side
    2,055.56x = 2,675,857.08
  5. Step 5: Solve for x
    x = 2,675,857.08/2,055.56
  6. Step 6: Final answer
    x = 1,301.77

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1.5x scale

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.