Home / 3,857.96-5,787.86-1,084.62

Finding the Fourth Proportional to 3,857.96, 5,787.86 and 1,084.62

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Solution

The fourth proportional to 3,857.96, 5,787.86 and 1,084.62 is: 1,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.96 : 5,787.86 = 1,084.62 : x
  2. Step 2: Convert to fraction form
    3,857.96/5,787.86 = 1,084.62/x
  3. Step 3: Cross multiply
    3,857.96x = 5,787.86 × 1,084.62
  4. Step 4: Simplify right side
    3,857.96x = 6,277,628.71
  5. Step 5: Solve for x
    x = 6,277,628.71/3,857.96
  6. Step 6: Final answer
    x = 1,627.19

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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.