Home / 1,930.34-2,663.92-1,091.07

Finding the Fourth Proportional to 1,930.34, 2,663.92 and 1,091.07

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Solution

The fourth proportional to 1,930.34, 2,663.92 and 1,091.07 is: 1,505.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.34 : 2,663.92 = 1,091.07 : x
  2. Step 2: Convert to fraction form
    1,930.34/2,663.92 = 1,091.07/x
  3. Step 3: Cross multiply
    1,930.34x = 2,663.92 × 1,091.07
  4. Step 4: Simplify right side
    1,930.34x = 2,906,517.74
  5. Step 5: Solve for x
    x = 2,906,517.74/1,930.34
  6. Step 6: Final answer
    x = 1,505.71

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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.