Home / 4,912.48-6,777.69-2,787.85

Finding the Fourth Proportional to 4,912.48, 6,777.69 and 2,787.85

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Solution

The fourth proportional to 4,912.48, 6,777.69 and 2,787.85 is: 3,846.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.48 : 6,777.69 = 2,787.85 : x
  2. Step 2: Convert to fraction form
    4,912.48/6,777.69 = 2,787.85/x
  3. Step 3: Cross multiply
    4,912.48x = 6,777.69 × 2,787.85
  4. Step 4: Simplify right side
    4,912.48x = 18,895,181.08
  5. Step 5: Solve for x
    x = 18,895,181.08/4,912.48
  6. Step 6: Final answer
    x = 3,846.36

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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.