Home / 3,685.75-5,091.30-2,944.90

Finding the Fourth Proportional to 3,685.75, 5,091.30 and 2,944.90

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Solution

The fourth proportional to 3,685.75, 5,091.30 and 2,944.90 is: 4,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.75 : 5,091.30 = 2,944.90 : x
  2. Step 2: Convert to fraction form
    3,685.75/5,091.30 = 2,944.90/x
  3. Step 3: Cross multiply
    3,685.75x = 5,091.30 × 2,944.90
  4. Step 4: Simplify right side
    3,685.75x = 14,993,343.91
  5. Step 5: Solve for x
    x = 14,993,343.91/3,685.75
  6. Step 6: Final answer
    x = 4,067.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.