Home / 4,936.92-6,811.20-2,839.80

Finding the Fourth Proportional to 4,936.92, 6,811.20 and 2,839.80

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Solution

The fourth proportional to 4,936.92, 6,811.20 and 2,839.80 is: 3,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.92 : 6,811.20 = 2,839.80 : x
  2. Step 2: Convert to fraction form
    4,936.92/6,811.20 = 2,839.80/x
  3. Step 3: Cross multiply
    4,936.92x = 6,811.20 × 2,839.80
  4. Step 4: Simplify right side
    4,936.92x = 19,342,445.76
  5. Step 5: Solve for x
    x = 19,342,445.76/4,936.92
  6. Step 6: Final answer
    x = 3,917.92

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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.