Home / 7,519.28-11,270.57-3,813.86

Finding the Fourth Proportional to 7,519.28, 11,270.57 and 3,813.86

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Solution

The fourth proportional to 7,519.28, 11,270.57 and 3,813.86 is: 5,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.28 : 11,270.57 = 3,813.86 : x
  2. Step 2: Convert to fraction form
    7,519.28/11,270.57 = 3,813.86/x
  3. Step 3: Cross multiply
    7,519.28x = 11,270.57 × 3,813.86
  4. Step 4: Simplify right side
    7,519.28x = 42,984,329.28
  5. Step 5: Solve for x
    x = 42,984,329.28/7,519.28
  6. Step 6: Final answer
    x = 5,716.55

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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.