Home / 2,787.36-3,846.48-1,608.60

Finding the Fourth Proportional to 2,787.36, 3,846.48 and 1,608.60

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Solution

The fourth proportional to 2,787.36, 3,846.48 and 1,608.60 is: 2,219.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.36 : 3,846.48 = 1,608.60 : x
  2. Step 2: Convert to fraction form
    2,787.36/3,846.48 = 1,608.60/x
  3. Step 3: Cross multiply
    2,787.36x = 3,846.48 × 1,608.60
  4. Step 4: Simplify right side
    2,787.36x = 6,187,447.73
  5. Step 5: Solve for x
    x = 6,187,447.73/2,787.36
  6. Step 6: Final answer
    x = 2,219.82

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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.