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Finding the Fourth Proportional to 3,086.54, 4,629.82 and 746.54

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Solution

The fourth proportional to 3,086.54, 4,629.82 and 746.54 is: 1,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.54 : 4,629.82 = 746.54 : x
  2. Step 2: Convert to fraction form
    3,086.54/4,629.82 = 746.54/x
  3. Step 3: Cross multiply
    3,086.54x = 4,629.82 × 746.54
  4. Step 4: Simplify right side
    3,086.54x = 3,456,318.94
  5. Step 5: Solve for x
    x = 3,456,318.94/3,086.54
  6. Step 6: Final answer
    x = 1,119.81

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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.