Home / 1,944.74-2,912.36-1,249.22

Finding the Fourth Proportional to 1,944.74, 2,912.36 and 1,249.22

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Solution

The fourth proportional to 1,944.74, 2,912.36 and 1,249.22 is: 1,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.74 : 2,912.36 = 1,249.22 : x
  2. Step 2: Convert to fraction form
    1,944.74/2,912.36 = 1,249.22/x
  3. Step 3: Cross multiply
    1,944.74x = 2,912.36 × 1,249.22
  4. Step 4: Simplify right side
    1,944.74x = 3,638,178.36
  5. Step 5: Solve for x
    x = 3,638,178.36/1,944.74
  6. Step 6: Final answer
    x = 1,870.78

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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.