Home / 5,161.12-7,736.39-2,039.86

Finding the Fourth Proportional to 5,161.12, 7,736.39 and 2,039.86

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Solution

The fourth proportional to 5,161.12, 7,736.39 and 2,039.86 is: 3,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.12 : 7,736.39 = 2,039.86 : x
  2. Step 2: Convert to fraction form
    5,161.12/7,736.39 = 2,039.86/x
  3. Step 3: Cross multiply
    5,161.12x = 7,736.39 × 2,039.86
  4. Step 4: Simplify right side
    5,161.12x = 15,781,142.31
  5. Step 5: Solve for x
    x = 15,781,142.31/5,161.12
  6. Step 6: Final answer
    x = 3,057.70

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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.