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Finding the Fourth Proportional to 3,994.39, 5,992.02 and 1,072.92

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Solution

The fourth proportional to 3,994.39, 5,992.02 and 1,072.92 is: 1,609.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.39 : 5,992.02 = 1,072.92 : x
  2. Step 2: Convert to fraction form
    3,994.39/5,992.02 = 1,072.92/x
  3. Step 3: Cross multiply
    3,994.39x = 5,992.02 × 1,072.92
  4. Step 4: Simplify right side
    3,994.39x = 6,428,958.10
  5. Step 5: Solve for x
    x = 6,428,958.10/3,994.39
  6. Step 6: Final answer
    x = 1,609.50

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1.5x scale

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.