Home / 2,084.54-3,121.92-1,938.74

Finding the Fourth Proportional to 2,084.54, 3,121.92 and 1,938.74

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Solution

The fourth proportional to 2,084.54, 3,121.92 and 1,938.74 is: 2,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.54 : 3,121.92 = 1,938.74 : x
  2. Step 2: Convert to fraction form
    2,084.54/3,121.92 = 1,938.74/x
  3. Step 3: Cross multiply
    2,084.54x = 3,121.92 × 1,938.74
  4. Step 4: Simplify right side
    2,084.54x = 6,052,591.18
  5. Step 5: Solve for x
    x = 6,052,591.18/2,084.54
  6. Step 6: Final answer
    x = 2,903.56

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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.