Home / 6,387.20-9,578.34-2,226.08

Finding the Fourth Proportional to 6,387.20, 9,578.34 and 2,226.08

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Solution

The fourth proportional to 6,387.20, 9,578.34 and 2,226.08 is: 3,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.20 : 9,578.34 = 2,226.08 : x
  2. Step 2: Convert to fraction form
    6,387.20/9,578.34 = 2,226.08/x
  3. Step 3: Cross multiply
    6,387.20x = 9,578.34 × 2,226.08
  4. Step 4: Simplify right side
    6,387.20x = 21,322,151.11
  5. Step 5: Solve for x
    x = 21,322,151.11/6,387.20
  6. Step 6: Final answer
    x = 3,338.26

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1.5x scale

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.