Home / 7,942.91-11,913.75-2,019.78

Finding the Fourth Proportional to 7,942.91, 11,913.75 and 2,019.78

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Solution

The fourth proportional to 7,942.91, 11,913.75 and 2,019.78 is: 3,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.91 : 11,913.75 = 2,019.78 : x
  2. Step 2: Convert to fraction form
    7,942.91/11,913.75 = 2,019.78/x
  3. Step 3: Cross multiply
    7,942.91x = 11,913.75 × 2,019.78
  4. Step 4: Simplify right side
    7,942.91x = 24,063,153.98
  5. Step 5: Solve for x
    x = 24,063,153.98/7,942.91
  6. Step 6: Final answer
    x = 3,029.52

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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.