Home / 4,949.31-7,421.30-2,172.73

Finding the Fourth Proportional to 4,949.31, 7,421.30 and 2,172.73

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Solution

The fourth proportional to 4,949.31, 7,421.30 and 2,172.73 is: 3,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.31 : 7,421.30 = 2,172.73 : x
  2. Step 2: Convert to fraction form
    4,949.31/7,421.30 = 2,172.73/x
  3. Step 3: Cross multiply
    4,949.31x = 7,421.30 × 2,172.73
  4. Step 4: Simplify right side
    4,949.31x = 16,124,481.15
  5. Step 5: Solve for x
    x = 16,124,481.15/4,949.31
  6. Step 6: Final answer
    x = 3,257.93

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1.5x scale

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.