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Finding the Fourth Proportional to 3,893.52, 5,863.10 and 2,805.42

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Solution

The fourth proportional to 3,893.52, 5,863.10 and 2,805.42 is: 4,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.52 : 5,863.10 = 2,805.42 : x
  2. Step 2: Convert to fraction form
    3,893.52/5,863.10 = 2,805.42/x
  3. Step 3: Cross multiply
    3,893.52x = 5,863.10 × 2,805.42
  4. Step 4: Simplify right side
    3,893.52x = 16,448,458.00
  5. Step 5: Solve for x
    x = 16,448,458.00/3,893.52
  6. Step 6: Final answer
    x = 4,224.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.