Home / 6,218.66-9,331.11-3,878.07

Finding the Fourth Proportional to 6,218.66, 9,331.11 and 3,878.07

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Solution

The fourth proportional to 6,218.66, 9,331.11 and 3,878.07 is: 5,819.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.66 : 9,331.11 = 3,878.07 : x
  2. Step 2: Convert to fraction form
    6,218.66/9,331.11 = 3,878.07/x
  3. Step 3: Cross multiply
    6,218.66x = 9,331.11 × 3,878.07
  4. Step 4: Simplify right side
    6,218.66x = 36,186,697.76
  5. Step 5: Solve for x
    x = 36,186,697.76/6,218.66
  6. Step 6: Final answer
    x = 5,819.06

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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.