Home / 7,834.60-11,751.82-2,640.44

Finding the Fourth Proportional to 7,834.60, 11,751.82 and 2,640.44

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Solution

The fourth proportional to 7,834.60, 11,751.82 and 2,640.44 is: 3,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.60 : 11,751.82 = 2,640.44 : x
  2. Step 2: Convert to fraction form
    7,834.60/11,751.82 = 2,640.44/x
  3. Step 3: Cross multiply
    7,834.60x = 11,751.82 × 2,640.44
  4. Step 4: Simplify right side
    7,834.60x = 31,029,975.60
  5. Step 5: Solve for x
    x = 31,029,975.60/7,834.60
  6. Step 6: Final answer
    x = 3,960.63

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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.