Home / 4,086.95-5,640.11-2,894.07

Finding the Fourth Proportional to 4,086.95, 5,640.11 and 2,894.07

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Solution

The fourth proportional to 4,086.95, 5,640.11 and 2,894.07 is: 3,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.95 : 5,640.11 = 2,894.07 : x
  2. Step 2: Convert to fraction form
    4,086.95/5,640.11 = 2,894.07/x
  3. Step 3: Cross multiply
    4,086.95x = 5,640.11 × 2,894.07
  4. Step 4: Simplify right side
    4,086.95x = 16,322,873.15
  5. Step 5: Solve for x
    x = 16,322,873.15/4,086.95
  6. Step 6: Final answer
    x = 3,993.90

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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.