Home / 2,960.88-4,084.29-1,912.95

Finding the Fourth Proportional to 2,960.88, 4,084.29 and 1,912.95

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Solution

The fourth proportional to 2,960.88, 4,084.29 and 1,912.95 is: 2,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.88 : 4,084.29 = 1,912.95 : x
  2. Step 2: Convert to fraction form
    2,960.88/4,084.29 = 1,912.95/x
  3. Step 3: Cross multiply
    2,960.88x = 4,084.29 × 1,912.95
  4. Step 4: Simplify right side
    2,960.88x = 7,813,042.56
  5. Step 5: Solve for x
    x = 7,813,042.56/2,960.88
  6. Step 6: Final answer
    x = 2,638.76

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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.