Home / 3,921.10-5,882.60-1,147.66

Finding the Fourth Proportional to 3,921.10, 5,882.60 and 1,147.66

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Solution

The fourth proportional to 3,921.10, 5,882.60 and 1,147.66 is: 1,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.10 : 5,882.60 = 1,147.66 : x
  2. Step 2: Convert to fraction form
    3,921.10/5,882.60 = 1,147.66/x
  3. Step 3: Cross multiply
    3,921.10x = 5,882.60 × 1,147.66
  4. Step 4: Simplify right side
    3,921.10x = 6,751,224.72
  5. Step 5: Solve for x
    x = 6,751,224.72/3,921.10
  6. Step 6: Final answer
    x = 1,721.77

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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.