Home / 1,294.25-1,939.91-1,190.43

Finding the Fourth Proportional to 1,294.25, 1,939.91 and 1,190.43

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Solution

The fourth proportional to 1,294.25, 1,939.91 and 1,190.43 is: 1,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.25 : 1,939.91 = 1,190.43 : x
  2. Step 2: Convert to fraction form
    1,294.25/1,939.91 = 1,190.43/x
  3. Step 3: Cross multiply
    1,294.25x = 1,939.91 × 1,190.43
  4. Step 4: Simplify right side
    1,294.25x = 2,309,321.11
  5. Step 5: Solve for x
    x = 2,309,321.11/1,294.25
  6. Step 6: Final answer
    x = 1,784.30

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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.