Home / 1,349.43-2,022.27-731.80

Finding the Fourth Proportional to 1,349.43, 2,022.27 and 731.80

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Solution

The fourth proportional to 1,349.43, 2,022.27 and 731.80 is: 1,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.43 : 2,022.27 = 731.80 : x
  2. Step 2: Convert to fraction form
    1,349.43/2,022.27 = 731.80/x
  3. Step 3: Cross multiply
    1,349.43x = 2,022.27 × 731.80
  4. Step 4: Simplify right side
    1,349.43x = 1,479,896.97
  5. Step 5: Solve for x
    x = 1,479,896.97/1,349.43
  6. Step 6: Final answer
    x = 1,096.69

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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.