Home / 2,850.12-3,933.12-1,591.16

Finding the Fourth Proportional to 2,850.12, 3,933.12 and 1,591.16

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Solution

The fourth proportional to 2,850.12, 3,933.12 and 1,591.16 is: 2,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.12 : 3,933.12 = 1,591.16 : x
  2. Step 2: Convert to fraction form
    2,850.12/3,933.12 = 1,591.16/x
  3. Step 3: Cross multiply
    2,850.12x = 3,933.12 × 1,591.16
  4. Step 4: Simplify right side
    2,850.12x = 6,258,223.22
  5. Step 5: Solve for x
    x = 6,258,223.22/2,850.12
  6. Step 6: Final answer
    x = 2,195.78

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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.