Home / 6,387.34-9,578.64-2,226.28

Finding the Fourth Proportional to 6,387.34, 9,578.64 and 2,226.28

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Solution

The fourth proportional to 6,387.34, 9,578.64 and 2,226.28 is: 3,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.34 : 9,578.64 = 2,226.28 : x
  2. Step 2: Convert to fraction form
    6,387.34/9,578.64 = 2,226.28/x
  3. Step 3: Cross multiply
    6,387.34x = 9,578.64 × 2,226.28
  4. Step 4: Simplify right side
    6,387.34x = 21,324,734.66
  5. Step 5: Solve for x
    x = 21,324,734.66/6,387.34
  6. Step 6: Final answer
    x = 3,338.59

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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.