Home / 3,858.28-5,787.32-1,084.98

Finding the Fourth Proportional to 3,858.28, 5,787.32 and 1,084.98

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Solution

The fourth proportional to 3,858.28, 5,787.32 and 1,084.98 is: 1,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.28 : 5,787.32 = 1,084.98 : x
  2. Step 2: Convert to fraction form
    3,858.28/5,787.32 = 1,084.98/x
  3. Step 3: Cross multiply
    3,858.28x = 5,787.32 × 1,084.98
  4. Step 4: Simplify right side
    3,858.28x = 6,279,126.45
  5. Step 5: Solve for x
    x = 6,279,126.45/3,858.28
  6. Step 6: Final answer
    x = 1,627.44

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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.