Home / 4,815-7,222.47-3,847.23

Finding the Fourth Proportional to 4,815, 7,222.47 and 3,847.23

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Solution

The fourth proportional to 4,815, 7,222.47 and 3,847.23 is: 5,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815 : 7,222.47 = 3,847.23 : x
  2. Step 2: Convert to fraction form
    4,815/7,222.47 = 3,847.23/x
  3. Step 3: Cross multiply
    4,815x = 7,222.47 × 3,847.23
  4. Step 4: Simplify right side
    4,815x = 27,786,503.26
  5. Step 5: Solve for x
    x = 27,786,503.26/4,815
  6. Step 6: Final answer
    x = 5,770.82

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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.