Home / 2,187.90-3,277.05-1,944.70

Finding the Fourth Proportional to 2,187.90, 3,277.05 and 1,944.70

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Solution

The fourth proportional to 2,187.90, 3,277.05 and 1,944.70 is: 2,912.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.90 : 3,277.05 = 1,944.70 : x
  2. Step 2: Convert to fraction form
    2,187.90/3,277.05 = 1,944.70/x
  3. Step 3: Cross multiply
    2,187.90x = 3,277.05 × 1,944.70
  4. Step 4: Simplify right side
    2,187.90x = 6,372,879.14
  5. Step 5: Solve for x
    x = 6,372,879.14/2,187.90
  6. Step 6: Final answer
    x = 2,912.78

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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.