Home / 1,939.26-2,908.44-706.80

Finding the Fourth Proportional to 1,939.26, 2,908.44 and 706.80

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Solution

The fourth proportional to 1,939.26, 2,908.44 and 706.80 is: 1,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.26 : 2,908.44 = 706.80 : x
  2. Step 2: Convert to fraction form
    1,939.26/2,908.44 = 706.80/x
  3. Step 3: Cross multiply
    1,939.26x = 2,908.44 × 706.80
  4. Step 4: Simplify right side
    1,939.26x = 2,055,685.39
  5. Step 5: Solve for x
    x = 2,055,685.39/1,939.26
  6. Step 6: Final answer
    x = 1,060.04

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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.