Home / 3,189.79-4,787.85-2,611.66

Finding the Fourth Proportional to 3,189.79, 4,787.85 and 2,611.66

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Solution

The fourth proportional to 3,189.79, 4,787.85 and 2,611.66 is: 3,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.79 : 4,787.85 = 2,611.66 : x
  2. Step 2: Convert to fraction form
    3,189.79/4,787.85 = 2,611.66/x
  3. Step 3: Cross multiply
    3,189.79x = 4,787.85 × 2,611.66
  4. Step 4: Simplify right side
    3,189.79x = 12,504,236.33
  5. Step 5: Solve for x
    x = 12,504,236.33/3,189.79
  6. Step 6: Final answer
    x = 3,920.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.