Home / 2,697.73-3,722.61-1,989.96

Finding the Fourth Proportional to 2,697.73, 3,722.61 and 1,989.96

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Solution

The fourth proportional to 2,697.73, 3,722.61 and 1,989.96 is: 2,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.73 : 3,722.61 = 1,989.96 : x
  2. Step 2: Convert to fraction form
    2,697.73/3,722.61 = 1,989.96/x
  3. Step 3: Cross multiply
    2,697.73x = 3,722.61 × 1,989.96
  4. Step 4: Simplify right side
    2,697.73x = 7,407,849.97
  5. Step 5: Solve for x
    x = 7,407,849.97/2,697.73
  6. Step 6: Final answer
    x = 2,745.96

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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.