Home / 2,639.41-3,960.49-1,914.96

Finding the Fourth Proportional to 2,639.41, 3,960.49 and 1,914.96

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Solution

The fourth proportional to 2,639.41, 3,960.49 and 1,914.96 is: 2,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.41 : 3,960.49 = 1,914.96 : x
  2. Step 2: Convert to fraction form
    2,639.41/3,960.49 = 1,914.96/x
  3. Step 3: Cross multiply
    2,639.41x = 3,960.49 × 1,914.96
  4. Step 4: Simplify right side
    2,639.41x = 7,584,170.36
  5. Step 5: Solve for x
    x = 7,584,170.36/2,639.41
  6. Step 6: Final answer
    x = 2,873.44

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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.