Home / 1,930.13-2,663.64-1,091.18

Finding the Fourth Proportional to 1,930.13, 2,663.64 and 1,091.18

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Solution

The fourth proportional to 1,930.13, 2,663.64 and 1,091.18 is: 1,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.13 : 2,663.64 = 1,091.18 : x
  2. Step 2: Convert to fraction form
    1,930.13/2,663.64 = 1,091.18/x
  3. Step 3: Cross multiply
    1,930.13x = 2,663.64 × 1,091.18
  4. Step 4: Simplify right side
    1,930.13x = 2,906,497.38
  5. Step 5: Solve for x
    x = 2,906,497.38/1,930.13
  6. Step 6: Final answer
    x = 1,505.86

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1.5x scale

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.