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Finding the Fourth Proportional to 3,998.16, 5,992.22 and 3,077.19

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Solution

The fourth proportional to 3,998.16, 5,992.22 and 3,077.19 is: 4,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.16 : 5,992.22 = 3,077.19 : x
  2. Step 2: Convert to fraction form
    3,998.16/5,992.22 = 3,077.19/x
  3. Step 3: Cross multiply
    3,998.16x = 5,992.22 × 3,077.19
  4. Step 4: Simplify right side
    3,998.16x = 18,439,169.50
  5. Step 5: Solve for x
    x = 18,439,169.50/3,998.16
  6. Step 6: Final answer
    x = 4,611.92

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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.