Home / 1,939.49-2,906.17-1,322.92

Finding the Fourth Proportional to 1,939.49, 2,906.17 and 1,322.92

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Solution

The fourth proportional to 1,939.49, 2,906.17 and 1,322.92 is: 1,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.49 : 2,906.17 = 1,322.92 : x
  2. Step 2: Convert to fraction form
    1,939.49/2,906.17 = 1,322.92/x
  3. Step 3: Cross multiply
    1,939.49x = 2,906.17 × 1,322.92
  4. Step 4: Simplify right side
    1,939.49x = 3,844,624.79
  5. Step 5: Solve for x
    x = 3,844,624.79/1,939.49
  6. Step 6: Final answer
    x = 1,982.28

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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.