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Finding the Fourth Proportional to 1,892.42, 2,843.09 and 1,114.42

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Solution

The fourth proportional to 1,892.42, 2,843.09 and 1,114.42 is: 1,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.42 : 2,843.09 = 1,114.42 : x
  2. Step 2: Convert to fraction form
    1,892.42/2,843.09 = 1,114.42/x
  3. Step 3: Cross multiply
    1,892.42x = 2,843.09 × 1,114.42
  4. Step 4: Simplify right side
    1,892.42x = 3,168,396.36
  5. Step 5: Solve for x
    x = 3,168,396.36/1,892.42
  6. Step 6: Final answer
    x = 1,674.26

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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.