Home / 1,251.24-1,876.58-481.80

Finding the Fourth Proportional to 1,251.24, 1,876.58 and 481.80

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Solution

The fourth proportional to 1,251.24, 1,876.58 and 481.80 is: 722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.24 : 1,876.58 = 481.80 : x
  2. Step 2: Convert to fraction form
    1,251.24/1,876.58 = 481.80/x
  3. Step 3: Cross multiply
    1,251.24x = 1,876.58 × 481.80
  4. Step 4: Simplify right side
    1,251.24x = 904,136.24
  5. Step 5: Solve for x
    x = 904,136.24/1,251.24
  6. Step 6: Final answer
    x = 722.59

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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.