Home / 7,863.90-11,795.82-2,934.78

Finding the Fourth Proportional to 7,863.90, 11,795.82 and 2,934.78

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Solution

The fourth proportional to 7,863.90, 11,795.82 and 2,934.78 is: 4,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.90 : 11,795.82 = 2,934.78 : x
  2. Step 2: Convert to fraction form
    7,863.90/11,795.82 = 2,934.78/x
  3. Step 3: Cross multiply
    7,863.90x = 11,795.82 × 2,934.78
  4. Step 4: Simplify right side
    7,863.90x = 34,618,136.62
  5. Step 5: Solve for x
    x = 34,618,136.62/7,863.90
  6. Step 6: Final answer
    x = 4,402.16

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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.