Home / 2,255.16-3,382.56-611.66

Finding the Fourth Proportional to 2,255.16, 3,382.56 and 611.66

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Solution

The fourth proportional to 2,255.16, 3,382.56 and 611.66 is: 917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.16 : 3,382.56 = 611.66 : x
  2. Step 2: Convert to fraction form
    2,255.16/3,382.56 = 611.66/x
  3. Step 3: Cross multiply
    2,255.16x = 3,382.56 × 611.66
  4. Step 4: Simplify right side
    2,255.16x = 2,068,976.65
  5. Step 5: Solve for x
    x = 2,068,976.65/2,255.16
  6. Step 6: Final answer
    x = 917.44

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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.