Home / 3,825.20-5,737.80-1,227.80

Finding the Fourth Proportional to 3,825.20, 5,737.80 and 1,227.80

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Solution

The fourth proportional to 3,825.20, 5,737.80 and 1,227.80 is: 1,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.20 : 5,737.80 = 1,227.80 : x
  2. Step 2: Convert to fraction form
    3,825.20/5,737.80 = 1,227.80/x
  3. Step 3: Cross multiply
    3,825.20x = 5,737.80 × 1,227.80
  4. Step 4: Simplify right side
    3,825.20x = 7,044,870.84
  5. Step 5: Solve for x
    x = 7,044,870.84/3,825.20
  6. Step 6: Final answer
    x = 1,841.70

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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.