Home / 2,161.14-3,241.82-927.70

Finding the Fourth Proportional to 2,161.14, 3,241.82 and 927.70

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Solution

The fourth proportional to 2,161.14, 3,241.82 and 927.70 is: 1,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.14 : 3,241.82 = 927.70 : x
  2. Step 2: Convert to fraction form
    2,161.14/3,241.82 = 927.70/x
  3. Step 3: Cross multiply
    2,161.14x = 3,241.82 × 927.70
  4. Step 4: Simplify right side
    2,161.14x = 3,007,436.41
  5. Step 5: Solve for x
    x = 3,007,436.41/2,161.14
  6. Step 6: Final answer
    x = 1,391.60

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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.