Home / 5,286.18-7,923.54-3,438.61

Finding the Fourth Proportional to 5,286.18, 7,923.54 and 3,438.61

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Solution

The fourth proportional to 5,286.18, 7,923.54 and 3,438.61 is: 5,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.18 : 7,923.54 = 3,438.61 : x
  2. Step 2: Convert to fraction form
    5,286.18/7,923.54 = 3,438.61/x
  3. Step 3: Cross multiply
    5,286.18x = 7,923.54 × 3,438.61
  4. Step 4: Simplify right side
    5,286.18x = 27,245,963.88
  5. Step 5: Solve for x
    x = 27,245,963.88/5,286.18
  6. Step 6: Final answer
    x = 5,154.19

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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.