Home / 2,191.07-3,286.28-892.23

Finding the Fourth Proportional to 2,191.07, 3,286.28 and 892.23

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Solution

The fourth proportional to 2,191.07, 3,286.28 and 892.23 is: 1,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.07 : 3,286.28 = 892.23 : x
  2. Step 2: Convert to fraction form
    2,191.07/3,286.28 = 892.23/x
  3. Step 3: Cross multiply
    2,191.07x = 3,286.28 × 892.23
  4. Step 4: Simplify right side
    2,191.07x = 2,932,113.14
  5. Step 5: Solve for x
    x = 2,932,113.14/2,191.07
  6. Step 6: Final answer
    x = 1,338.21

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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.