Home / 3,108.67-4,663-2,131.81

Finding the Fourth Proportional to 3,108.67, 4,663 and 2,131.81

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Solution

The fourth proportional to 3,108.67, 4,663 and 2,131.81 is: 3,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.67 : 4,663 = 2,131.81 : x
  2. Step 2: Convert to fraction form
    3,108.67/4,663 = 2,131.81/x
  3. Step 3: Cross multiply
    3,108.67x = 4,663 × 2,131.81
  4. Step 4: Simplify right side
    3,108.67x = 9,940,630.03
  5. Step 5: Solve for x
    x = 9,940,630.03/3,108.67
  6. Step 6: Final answer
    x = 3,197.71

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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.