Home / 3,039.92-4,194.96-1,991.92

Finding the Fourth Proportional to 3,039.92, 4,194.96 and 1,991.92

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Solution

The fourth proportional to 3,039.92, 4,194.96 and 1,991.92 is: 2,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.92 : 4,194.96 = 1,991.92 : x
  2. Step 2: Convert to fraction form
    3,039.92/4,194.96 = 1,991.92/x
  3. Step 3: Cross multiply
    3,039.92x = 4,194.96 × 1,991.92
  4. Step 4: Simplify right side
    3,039.92x = 8,356,024.72
  5. Step 5: Solve for x
    x = 8,356,024.72/3,039.92
  6. Step 6: Final answer
    x = 2,748.76

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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.