Home / 1,426.30-2,136.03-731.14

Finding the Fourth Proportional to 1,426.30, 2,136.03 and 731.14

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Solution

The fourth proportional to 1,426.30, 2,136.03 and 731.14 is: 1,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.30 : 2,136.03 = 731.14 : x
  2. Step 2: Convert to fraction form
    1,426.30/2,136.03 = 731.14/x
  3. Step 3: Cross multiply
    1,426.30x = 2,136.03 × 731.14
  4. Step 4: Simplify right side
    1,426.30x = 1,561,736.97
  5. Step 5: Solve for x
    x = 1,561,736.97/1,426.30
  6. Step 6: Final answer
    x = 1,094.96

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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.