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Finding the Fourth Proportional to 3,194.15, 4,790.84 and 854.33

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Solution

The fourth proportional to 3,194.15, 4,790.84 and 854.33 is: 1,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.15 : 4,790.84 = 854.33 : x
  2. Step 2: Convert to fraction form
    3,194.15/4,790.84 = 854.33/x
  3. Step 3: Cross multiply
    3,194.15x = 4,790.84 × 854.33
  4. Step 4: Simplify right side
    3,194.15x = 4,092,930.11
  5. Step 5: Solve for x
    x = 4,092,930.11/3,194.15
  6. Step 6: Final answer
    x = 1,281.39

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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.