Home / 4,140.75-5,716.35-3,194.42

Finding the Fourth Proportional to 4,140.75, 5,716.35 and 3,194.42

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Solution

The fourth proportional to 4,140.75, 5,716.35 and 3,194.42 is: 4,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.75 : 5,716.35 = 3,194.42 : x
  2. Step 2: Convert to fraction form
    4,140.75/5,716.35 = 3,194.42/x
  3. Step 3: Cross multiply
    4,140.75x = 5,716.35 × 3,194.42
  4. Step 4: Simplify right side
    4,140.75x = 18,260,394.19
  5. Step 5: Solve for x
    x = 18,260,394.19/4,140.75
  6. Step 6: Final answer
    x = 4,409.92

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.