Home / 3,003.85-4,142.99-2,008.81

Finding the Fourth Proportional to 3,003.85, 4,142.99 and 2,008.81

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Solution

The fourth proportional to 3,003.85, 4,142.99 and 2,008.81 is: 2,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.85 : 4,142.99 = 2,008.81 : x
  2. Step 2: Convert to fraction form
    3,003.85/4,142.99 = 2,008.81/x
  3. Step 3: Cross multiply
    3,003.85x = 4,142.99 × 2,008.81
  4. Step 4: Simplify right side
    3,003.85x = 8,322,469.70
  5. Step 5: Solve for x
    x = 8,322,469.70/3,003.85
  6. Step 6: Final answer
    x = 2,770.60

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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.