Home / 3,191.94-4,405.06-1,794.78

Finding the Fourth Proportional to 3,191.94, 4,405.06 and 1,794.78

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Solution

The fourth proportional to 3,191.94, 4,405.06 and 1,794.78 is: 2,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.94 : 4,405.06 = 1,794.78 : x
  2. Step 2: Convert to fraction form
    3,191.94/4,405.06 = 1,794.78/x
  3. Step 3: Cross multiply
    3,191.94x = 4,405.06 × 1,794.78
  4. Step 4: Simplify right side
    3,191.94x = 7,906,113.59
  5. Step 5: Solve for x
    x = 7,906,113.59/3,191.94
  6. Step 6: Final answer
    x = 2,476.90

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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.