Home / 4,091.40-6,144.12-3,906.72

Finding the Fourth Proportional to 4,091.40, 6,144.12 and 3,906.72

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Solution

The fourth proportional to 4,091.40, 6,144.12 and 3,906.72 is: 5,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.40 : 6,144.12 = 3,906.72 : x
  2. Step 2: Convert to fraction form
    4,091.40/6,144.12 = 3,906.72/x
  3. Step 3: Cross multiply
    4,091.40x = 6,144.12 × 3,906.72
  4. Step 4: Simplify right side
    4,091.40x = 24,003,356.49
  5. Step 5: Solve for x
    x = 24,003,356.49/4,091.40
  6. Step 6: Final answer
    x = 5,866.78

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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.