Home / 5,145.21-7,711.67-2,369.09

Finding the Fourth Proportional to 5,145.21, 7,711.67 and 2,369.09

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Solution

The fourth proportional to 5,145.21, 7,711.67 and 2,369.09 is: 3,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.21 : 7,711.67 = 2,369.09 : x
  2. Step 2: Convert to fraction form
    5,145.21/7,711.67 = 2,369.09/x
  3. Step 3: Cross multiply
    5,145.21x = 7,711.67 × 2,369.09
  4. Step 4: Simplify right side
    5,145.21x = 18,269,589.88
  5. Step 5: Solve for x
    x = 18,269,589.88/5,145.21
  6. Step 6: Final answer
    x = 3,550.80

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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.