Home / 6,811.62-10,219.86-3,892.38

Finding the Fourth Proportional to 6,811.62, 10,219.86 and 3,892.38

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Solution

The fourth proportional to 6,811.62, 10,219.86 and 3,892.38 is: 5,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.62 : 10,219.86 = 3,892.38 : x
  2. Step 2: Convert to fraction form
    6,811.62/10,219.86 = 3,892.38/x
  3. Step 3: Cross multiply
    6,811.62x = 10,219.86 × 3,892.38
  4. Step 4: Simplify right side
    6,811.62x = 39,779,578.67
  5. Step 5: Solve for x
    x = 39,779,578.67/6,811.62
  6. Step 6: Final answer
    x = 5,839.96

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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.