Home / 2,719.94-4,080.03-1,981.85

Finding the Fourth Proportional to 2,719.94, 4,080.03 and 1,981.85

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Solution

The fourth proportional to 2,719.94, 4,080.03 and 1,981.85 is: 2,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.94 : 4,080.03 = 1,981.85 : x
  2. Step 2: Convert to fraction form
    2,719.94/4,080.03 = 1,981.85/x
  3. Step 3: Cross multiply
    2,719.94x = 4,080.03 × 1,981.85
  4. Step 4: Simplify right side
    2,719.94x = 8,086,007.46
  5. Step 5: Solve for x
    x = 8,086,007.46/2,719.94
  6. Step 6: Final answer
    x = 2,972.86

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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.