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Finding the Fourth Proportional to 4,863.78, 7,296.93 and 2,786.13

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Solution

The fourth proportional to 4,863.78, 7,296.93 and 2,786.13 is: 4,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.78 : 7,296.93 = 2,786.13 : x
  2. Step 2: Convert to fraction form
    4,863.78/7,296.93 = 2,786.13/x
  3. Step 3: Cross multiply
    4,863.78x = 7,296.93 × 2,786.13
  4. Step 4: Simplify right side
    4,863.78x = 20,330,195.58
  5. Step 5: Solve for x
    x = 20,330,195.58/4,863.78
  6. Step 6: Final answer
    x = 4,179.92

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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.