Home / 1,930.51-2,663.66-1,091.17

Finding the Fourth Proportional to 1,930.51, 2,663.66 and 1,091.17

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Solution

The fourth proportional to 1,930.51, 2,663.66 and 1,091.17 is: 1,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.51 : 2,663.66 = 1,091.17 : x
  2. Step 2: Convert to fraction form
    1,930.51/2,663.66 = 1,091.17/x
  3. Step 3: Cross multiply
    1,930.51x = 2,663.66 × 1,091.17
  4. Step 4: Simplify right side
    1,930.51x = 2,906,505.88
  5. Step 5: Solve for x
    x = 2,906,505.88/1,930.51
  6. Step 6: Final answer
    x = 1,505.56

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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.