Home / 5,286.43-7,923.92-3,438.86

Finding the Fourth Proportional to 5,286.43, 7,923.92 and 3,438.86

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Solution

The fourth proportional to 5,286.43, 7,923.92 and 3,438.86 is: 5,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.43 : 7,923.92 = 3,438.86 : x
  2. Step 2: Convert to fraction form
    5,286.43/7,923.92 = 3,438.86/x
  3. Step 3: Cross multiply
    5,286.43x = 7,923.92 × 3,438.86
  4. Step 4: Simplify right side
    5,286.43x = 27,249,251.53
  5. Step 5: Solve for x
    x = 27,249,251.53/5,286.43
  6. Step 6: Final answer
    x = 5,154.57

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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.