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Finding the Fourth Proportional to 3,998.92, 5,986.08 and 2,609.27

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Solution

The fourth proportional to 3,998.92, 5,986.08 and 2,609.27 is: 3,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.92 : 5,986.08 = 2,609.27 : x
  2. Step 2: Convert to fraction form
    3,998.92/5,986.08 = 2,609.27/x
  3. Step 3: Cross multiply
    3,998.92x = 5,986.08 × 2,609.27
  4. Step 4: Simplify right side
    3,998.92x = 15,619,269.03
  5. Step 5: Solve for x
    x = 15,619,269.03/3,998.92
  6. Step 6: Final answer
    x = 3,905.87

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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.