Home / 5,421.80-7,481.50-3,063.88

Finding the Fourth Proportional to 5,421.80, 7,481.50 and 3,063.88

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Solution

The fourth proportional to 5,421.80, 7,481.50 and 3,063.88 is: 4,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.80 : 7,481.50 = 3,063.88 : x
  2. Step 2: Convert to fraction form
    5,421.80/7,481.50 = 3,063.88/x
  3. Step 3: Cross multiply
    5,421.80x = 7,481.50 × 3,063.88
  4. Step 4: Simplify right side
    5,421.80x = 22,922,418.22
  5. Step 5: Solve for x
    x = 22,922,418.22/5,421.80
  6. Step 6: Final answer
    x = 4,227.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.