Home / 4,105.11-6,157.88-1,331.41

Finding the Fourth Proportional to 4,105.11, 6,157.88 and 1,331.41

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Solution

The fourth proportional to 4,105.11, 6,157.88 and 1,331.41 is: 1,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.11 : 6,157.88 = 1,331.41 : x
  2. Step 2: Convert to fraction form
    4,105.11/6,157.88 = 1,331.41/x
  3. Step 3: Cross multiply
    4,105.11x = 6,157.88 × 1,331.41
  4. Step 4: Simplify right side
    4,105.11x = 8,198,663.01
  5. Step 5: Solve for x
    x = 8,198,663.01/4,105.11
  6. Step 6: Final answer
    x = 1,997.18

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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.