Home / 3,134.40-4,694.32-1,836.78

Finding the Fourth Proportional to 3,134.40, 4,694.32 and 1,836.78

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Solution

The fourth proportional to 3,134.40, 4,694.32 and 1,836.78 is: 2,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.40 : 4,694.32 = 1,836.78 : x
  2. Step 2: Convert to fraction form
    3,134.40/4,694.32 = 1,836.78/x
  3. Step 3: Cross multiply
    3,134.40x = 4,694.32 × 1,836.78
  4. Step 4: Simplify right side
    3,134.40x = 8,622,433.09
  5. Step 5: Solve for x
    x = 8,622,433.09/3,134.40
  6. Step 6: Final answer
    x = 2,750.90

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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.