Home / 10,651.72-15,976.32-2,859.92

Finding the Fourth Proportional to 10,651.72, 15,976.32 and 2,859.92

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Solution

The fourth proportional to 10,651.72, 15,976.32 and 2,859.92 is: 4,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.72 : 15,976.32 = 2,859.92 : x
  2. Step 2: Convert to fraction form
    10,651.72/15,976.32 = 2,859.92/x
  3. Step 3: Cross multiply
    10,651.72x = 15,976.32 × 2,859.92
  4. Step 4: Simplify right side
    10,651.72x = 45,690,997.09
  5. Step 5: Solve for x
    x = 45,690,997.09/10,651.72
  6. Step 6: Final answer
    x = 4,289.54

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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.