Home / 2,440.43-3,661.16-979.70

Finding the Fourth Proportional to 2,440.43, 3,661.16 and 979.70

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Solution

The fourth proportional to 2,440.43, 3,661.16 and 979.70 is: 1,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.43 : 3,661.16 = 979.70 : x
  2. Step 2: Convert to fraction form
    2,440.43/3,661.16 = 979.70/x
  3. Step 3: Cross multiply
    2,440.43x = 3,661.16 × 979.70
  4. Step 4: Simplify right side
    2,440.43x = 3,586,825.54
  5. Step 5: Solve for x
    x = 3,586,825.54/2,440.43
  6. Step 6: Final answer
    x = 1,469.75

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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.