Home / 7,825.38-11,739.99-2,278.77

Finding the Fourth Proportional to 7,825.38, 11,739.99 and 2,278.77

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Solution

The fourth proportional to 7,825.38, 11,739.99 and 2,278.77 is: 3,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.38 : 11,739.99 = 2,278.77 : x
  2. Step 2: Convert to fraction form
    7,825.38/11,739.99 = 2,278.77/x
  3. Step 3: Cross multiply
    7,825.38x = 11,739.99 × 2,278.77
  4. Step 4: Simplify right side
    7,825.38x = 26,752,737.01
  5. Step 5: Solve for x
    x = 26,752,737.01/7,825.38
  6. Step 6: Final answer
    x = 3,418.71

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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.