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Finding the Fourth Proportional to 3,930.56, 5,891.06 and 1,848.86

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Solution

The fourth proportional to 3,930.56, 5,891.06 and 1,848.86 is: 2,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.56 : 5,891.06 = 1,848.86 : x
  2. Step 2: Convert to fraction form
    3,930.56/5,891.06 = 1,848.86/x
  3. Step 3: Cross multiply
    3,930.56x = 5,891.06 × 1,848.86
  4. Step 4: Simplify right side
    3,930.56x = 10,891,745.19
  5. Step 5: Solve for x
    x = 10,891,745.19/3,930.56
  6. Step 6: Final answer
    x = 2,771.04

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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.