Home / 7,858.08-11,789.22-2,663.94

Finding the Fourth Proportional to 7,858.08, 11,789.22 and 2,663.94

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Solution

The fourth proportional to 7,858.08, 11,789.22 and 2,663.94 is: 3,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.08 : 11,789.22 = 2,663.94 : x
  2. Step 2: Convert to fraction form
    7,858.08/11,789.22 = 2,663.94/x
  3. Step 3: Cross multiply
    7,858.08x = 11,789.22 × 2,663.94
  4. Step 4: Simplify right side
    7,858.08x = 31,405,774.73
  5. Step 5: Solve for x
    x = 31,405,774.73/7,858.08
  6. Step 6: Final answer
    x = 3,996.62

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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.