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Finding the Fourth Proportional to 2,232.79, 3,082.80 and 1,393.66

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Solution

The fourth proportional to 2,232.79, 3,082.80 and 1,393.66 is: 1,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.79 : 3,082.80 = 1,393.66 : x
  2. Step 2: Convert to fraction form
    2,232.79/3,082.80 = 1,393.66/x
  3. Step 3: Cross multiply
    2,232.79x = 3,082.80 × 1,393.66
  4. Step 4: Simplify right side
    2,232.79x = 4,296,375.05
  5. Step 5: Solve for x
    x = 4,296,375.05/2,232.79
  6. Step 6: Final answer
    x = 1,924.22

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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.