Home / 4,226.39-6,338.91-1,415.20

Finding the Fourth Proportional to 4,226.39, 6,338.91 and 1,415.20

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Solution

The fourth proportional to 4,226.39, 6,338.91 and 1,415.20 is: 2,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,226.39 : 6,338.91 = 1,415.20 : x
  2. Step 2: Convert to fraction form
    4,226.39/6,338.91 = 1,415.20/x
  3. Step 3: Cross multiply
    4,226.39x = 6,338.91 × 1,415.20
  4. Step 4: Simplify right side
    4,226.39x = 8,970,825.43
  5. Step 5: Solve for x
    x = 8,970,825.43/4,226.39
  6. Step 6: Final answer
    x = 2,122.57

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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.