Home / 4,912.44-6,778.55-2,787.81

Finding the Fourth Proportional to 4,912.44, 6,778.55 and 2,787.81

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Solution

The fourth proportional to 4,912.44, 6,778.55 and 2,787.81 is: 3,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.44 : 6,778.55 = 2,787.81 : x
  2. Step 2: Convert to fraction form
    4,912.44/6,778.55 = 2,787.81/x
  3. Step 3: Cross multiply
    4,912.44x = 6,778.55 × 2,787.81
  4. Step 4: Simplify right side
    4,912.44x = 18,897,309.48
  5. Step 5: Solve for x
    x = 18,897,309.48/4,912.44
  6. Step 6: Final answer
    x = 3,846.83

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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.