Home / 7,286.87-10,931.33-3,589.14

Finding the Fourth Proportional to 7,286.87, 10,931.33 and 3,589.14

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Solution

The fourth proportional to 7,286.87, 10,931.33 and 3,589.14 is: 5,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.87 : 10,931.33 = 3,589.14 : x
  2. Step 2: Convert to fraction form
    7,286.87/10,931.33 = 3,589.14/x
  3. Step 3: Cross multiply
    7,286.87x = 10,931.33 × 3,589.14
  4. Step 4: Simplify right side
    7,286.87x = 39,234,021.39
  5. Step 5: Solve for x
    x = 39,234,021.39/7,286.87
  6. Step 6: Final answer
    x = 5,384.21

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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.