Home / 6,879.48-10,311.90-5,231.94

Finding the Fourth Proportional to 6,879.48, 10,311.90 and 5,231.94

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Solution

The fourth proportional to 6,879.48, 10,311.90 and 5,231.94 is: 7,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.48 : 10,311.90 = 5,231.94 : x
  2. Step 2: Convert to fraction form
    6,879.48/10,311.90 = 5,231.94/x
  3. Step 3: Cross multiply
    6,879.48x = 10,311.90 × 5,231.94
  4. Step 4: Simplify right side
    6,879.48x = 53,951,242.09
  5. Step 5: Solve for x
    x = 53,951,242.09/6,879.48
  6. Step 6: Final answer
    x = 7,842.34

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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.