Home / 4,744.86-7,120.92-2,149.62

Finding the Fourth Proportional to 4,744.86, 7,120.92 and 2,149.62

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Solution

The fourth proportional to 4,744.86, 7,120.92 and 2,149.62 is: 3,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,744.86 : 7,120.92 = 2,149.62 : x
  2. Step 2: Convert to fraction form
    4,744.86/7,120.92 = 2,149.62/x
  3. Step 3: Cross multiply
    4,744.86x = 7,120.92 × 2,149.62
  4. Step 4: Simplify right side
    4,744.86x = 15,307,272.05
  5. Step 5: Solve for x
    x = 15,307,272.05/4,744.86
  6. Step 6: Final answer
    x = 3,226.07

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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.