Home / 1,371.08-2,057.92-722.27

Finding the Fourth Proportional to 1,371.08, 2,057.92 and 722.27

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Solution

The fourth proportional to 1,371.08, 2,057.92 and 722.27 is: 1,084.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.08 : 2,057.92 = 722.27 : x
  2. Step 2: Convert to fraction form
    1,371.08/2,057.92 = 722.27/x
  3. Step 3: Cross multiply
    1,371.08x = 2,057.92 × 722.27
  4. Step 4: Simplify right side
    1,371.08x = 1,486,377.22
  5. Step 5: Solve for x
    x = 1,486,377.22/1,371.08
  6. Step 6: Final answer
    x = 1,084.09

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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.