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Finding the Fourth Proportional to 2,843.64, 4,266.14 and 1,611.90

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Solution

The fourth proportional to 2,843.64, 4,266.14 and 1,611.90 is: 2,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.64 : 4,266.14 = 1,611.90 : x
  2. Step 2: Convert to fraction form
    2,843.64/4,266.14 = 1,611.90/x
  3. Step 3: Cross multiply
    2,843.64x = 4,266.14 × 1,611.90
  4. Step 4: Simplify right side
    2,843.64x = 6,876,583.01
  5. Step 5: Solve for x
    x = 6,876,583.01/2,843.64
  6. Step 6: Final answer
    x = 2,418.23

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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.