Home / 4,821.70-7,227.15-2,480.80

Finding the Fourth Proportional to 4,821.70, 7,227.15 and 2,480.80

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Solution

The fourth proportional to 4,821.70, 7,227.15 and 2,480.80 is: 3,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.70 : 7,227.15 = 2,480.80 : x
  2. Step 2: Convert to fraction form
    4,821.70/7,227.15 = 2,480.80/x
  3. Step 3: Cross multiply
    4,821.70x = 7,227.15 × 2,480.80
  4. Step 4: Simplify right side
    4,821.70x = 17,929,113.72
  5. Step 5: Solve for x
    x = 17,929,113.72/4,821.70
  6. Step 6: Final answer
    x = 3,718.42

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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.