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Finding the Fourth Proportional to 3,879.52, 5,352.07 and 3,036.84

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Solution

The fourth proportional to 3,879.52, 5,352.07 and 3,036.84 is: 4,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.52 : 5,352.07 = 3,036.84 : x
  2. Step 2: Convert to fraction form
    3,879.52/5,352.07 = 3,036.84/x
  3. Step 3: Cross multiply
    3,879.52x = 5,352.07 × 3,036.84
  4. Step 4: Simplify right side
    3,879.52x = 16,253,352.60
  5. Step 5: Solve for x
    x = 16,253,352.60/3,879.52
  6. Step 6: Final answer
    x = 4,189.53

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1.5x scale

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.