Home / 7,874.13-11,811.83-2,608.94

Finding the Fourth Proportional to 7,874.13, 11,811.83 and 2,608.94

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Solution

The fourth proportional to 7,874.13, 11,811.83 and 2,608.94 is: 3,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.13 : 11,811.83 = 2,608.94 : x
  2. Step 2: Convert to fraction form
    7,874.13/11,811.83 = 2,608.94/x
  3. Step 3: Cross multiply
    7,874.13x = 11,811.83 × 2,608.94
  4. Step 4: Simplify right side
    7,874.13x = 30,816,283.66
  5. Step 5: Solve for x
    x = 30,816,283.66/7,874.13
  6. Step 6: Final answer
    x = 3,913.61

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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.