Home / 3,286.06-4,928.36-945.55

Finding the Fourth Proportional to 3,286.06, 4,928.36 and 945.55

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Solution

The fourth proportional to 3,286.06, 4,928.36 and 945.55 is: 1,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.06 : 4,928.36 = 945.55 : x
  2. Step 2: Convert to fraction form
    3,286.06/4,928.36 = 945.55/x
  3. Step 3: Cross multiply
    3,286.06x = 4,928.36 × 945.55
  4. Step 4: Simplify right side
    3,286.06x = 4,659,986.28
  5. Step 5: Solve for x
    x = 4,659,986.28/3,286.06
  6. Step 6: Final answer
    x = 1,418.11

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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.