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Finding the Fourth Proportional to 2,855.43, 4,279.71 and 1,469.42

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Solution

The fourth proportional to 2,855.43, 4,279.71 and 1,469.42 is: 2,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.43 : 4,279.71 = 1,469.42 : x
  2. Step 2: Convert to fraction form
    2,855.43/4,279.71 = 1,469.42/x
  3. Step 3: Cross multiply
    2,855.43x = 4,279.71 × 1,469.42
  4. Step 4: Simplify right side
    2,855.43x = 6,288,670.07
  5. Step 5: Solve for x
    x = 6,288,670.07/2,855.43
  6. Step 6: Final answer
    x = 2,202.36

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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.