Home / 2,787.39-3,846.62-1,608.49

Finding the Fourth Proportional to 2,787.39, 3,846.62 and 1,608.49

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Solution

The fourth proportional to 2,787.39, 3,846.62 and 1,608.49 is: 2,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.39 : 3,846.62 = 1,608.49 : x
  2. Step 2: Convert to fraction form
    2,787.39/3,846.62 = 1,608.49/x
  3. Step 3: Cross multiply
    2,787.39x = 3,846.62 × 1,608.49
  4. Step 4: Simplify right side
    2,787.39x = 6,187,249.80
  5. Step 5: Solve for x
    x = 6,187,249.80/2,787.39
  6. Step 6: Final answer
    x = 2,219.73

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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.