Home / 3,019.92-4,165.64-1,997.86

Finding the Fourth Proportional to 3,019.92, 4,165.64 and 1,997.86

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Solution

The fourth proportional to 3,019.92, 4,165.64 and 1,997.86 is: 2,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.92 : 4,165.64 = 1,997.86 : x
  2. Step 2: Convert to fraction form
    3,019.92/4,165.64 = 1,997.86/x
  3. Step 3: Cross multiply
    3,019.92x = 4,165.64 × 1,997.86
  4. Step 4: Simplify right side
    3,019.92x = 8,322,365.53
  5. Step 5: Solve for x
    x = 8,322,365.53/3,019.92
  6. Step 6: Final answer
    x = 2,755.82

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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.