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Finding the Fourth Proportional to 3,893.92, 5,863.36 and 3,207.04

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Solution

The fourth proportional to 3,893.92, 5,863.36 and 3,207.04 is: 4,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.92 : 5,863.36 = 3,207.04 : x
  2. Step 2: Convert to fraction form
    3,893.92/5,863.36 = 3,207.04/x
  3. Step 3: Cross multiply
    3,893.92x = 5,863.36 × 3,207.04
  4. Step 4: Simplify right side
    3,893.92x = 18,804,030.05
  5. Step 5: Solve for x
    x = 18,804,030.05/3,893.92
  6. Step 6: Final answer
    x = 4,829.07

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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.