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Finding the Fourth Proportional to 3,195.67, 4,793.73 and 855.67

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Solution

The fourth proportional to 3,195.67, 4,793.73 and 855.67 is: 1,283.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.67 : 4,793.73 = 855.67 : x
  2. Step 2: Convert to fraction form
    3,195.67/4,793.73 = 855.67/x
  3. Step 3: Cross multiply
    3,195.67x = 4,793.73 × 855.67
  4. Step 4: Simplify right side
    3,195.67x = 4,101,850.95
  5. Step 5: Solve for x
    x = 4,101,850.95/3,195.67
  6. Step 6: Final answer
    x = 1,283.57

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1.5x scale

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.