Home / 4,115.10-6,171.84-3,426.20

Finding the Fourth Proportional to 4,115.10, 6,171.84 and 3,426.20

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Solution

The fourth proportional to 4,115.10, 6,171.84 and 3,426.20 is: 5,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.10 : 6,171.84 = 3,426.20 : x
  2. Step 2: Convert to fraction form
    4,115.10/6,171.84 = 3,426.20/x
  3. Step 3: Cross multiply
    4,115.10x = 6,171.84 × 3,426.20
  4. Step 4: Simplify right side
    4,115.10x = 21,145,958.21
  5. Step 5: Solve for x
    x = 21,145,958.21/4,115.10
  6. Step 6: Final answer
    x = 5,138.63

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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.