Home / 3,858.85-5,787.63-1,394.83

Finding the Fourth Proportional to 3,858.85, 5,787.63 and 1,394.83

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Solution

The fourth proportional to 3,858.85, 5,787.63 and 1,394.83 is: 2,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.85 : 5,787.63 = 1,394.83 : x
  2. Step 2: Convert to fraction form
    3,858.85/5,787.63 = 1,394.83/x
  3. Step 3: Cross multiply
    3,858.85x = 5,787.63 × 1,394.83
  4. Step 4: Simplify right side
    3,858.85x = 8,072,759.95
  5. Step 5: Solve for x
    x = 8,072,759.95/3,858.85
  6. Step 6: Final answer
    x = 2,092.01

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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.