Home / 1,976.26-2,724.70-1,620.90

Finding the Fourth Proportional to 1,976.26, 2,724.70 and 1,620.90

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Solution

The fourth proportional to 1,976.26, 2,724.70 and 1,620.90 is: 2,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.26 : 2,724.70 = 1,620.90 : x
  2. Step 2: Convert to fraction form
    1,976.26/2,724.70 = 1,620.90/x
  3. Step 3: Cross multiply
    1,976.26x = 2,724.70 × 1,620.90
  4. Step 4: Simplify right side
    1,976.26x = 4,416,466.23
  5. Step 5: Solve for x
    x = 4,416,466.23/1,976.26
  6. Step 6: Final answer
    x = 2,234.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.