Home / 4,190.30-6,286.82-2,109.31

Finding the Fourth Proportional to 4,190.30, 6,286.82 and 2,109.31

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Solution

The fourth proportional to 4,190.30, 6,286.82 and 2,109.31 is: 3,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.30 : 6,286.82 = 2,109.31 : x
  2. Step 2: Convert to fraction form
    4,190.30/6,286.82 = 2,109.31/x
  3. Step 3: Cross multiply
    4,190.30x = 6,286.82 × 2,109.31
  4. Step 4: Simplify right side
    4,190.30x = 13,260,820.86
  5. Step 5: Solve for x
    x = 13,260,820.86/4,190.30
  6. Step 6: Final answer
    x = 3,164.65

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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.