Home / 3,864.31-5,795.94-1,091.20

Finding the Fourth Proportional to 3,864.31, 5,795.94 and 1,091.20

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Solution

The fourth proportional to 3,864.31, 5,795.94 and 1,091.20 is: 1,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.31 : 5,795.94 = 1,091.20 : x
  2. Step 2: Convert to fraction form
    3,864.31/5,795.94 = 1,091.20/x
  3. Step 3: Cross multiply
    3,864.31x = 5,795.94 × 1,091.20
  4. Step 4: Simplify right side
    3,864.31x = 6,324,512.36
  5. Step 5: Solve for x
    x = 6,324,512.36/3,864.31
  6. Step 6: Final answer
    x = 1,636.65

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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.