Home / 6,138.28-8,469.66-3,900.52

Finding the Fourth Proportional to 6,138.28, 8,469.66 and 3,900.52

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Solution

The fourth proportional to 6,138.28, 8,469.66 and 3,900.52 is: 5,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.28 : 8,469.66 = 3,900.52 : x
  2. Step 2: Convert to fraction form
    6,138.28/8,469.66 = 3,900.52/x
  3. Step 3: Cross multiply
    6,138.28x = 8,469.66 × 3,900.52
  4. Step 4: Simplify right side
    6,138.28x = 33,036,078.22
  5. Step 5: Solve for x
    x = 33,036,078.22/6,138.28
  6. Step 6: Final answer
    x = 5,381.98

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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.