Home / 4,820.80-7,231.20-2,049.52

Finding the Fourth Proportional to 4,820.80, 7,231.20 and 2,049.52

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Solution

The fourth proportional to 4,820.80, 7,231.20 and 2,049.52 is: 3,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.80 : 7,231.20 = 2,049.52 : x
  2. Step 2: Convert to fraction form
    4,820.80/7,231.20 = 2,049.52/x
  3. Step 3: Cross multiply
    4,820.80x = 7,231.20 × 2,049.52
  4. Step 4: Simplify right side
    4,820.80x = 14,820,489.02
  5. Step 5: Solve for x
    x = 14,820,489.02/4,820.80
  6. Step 6: Final answer
    x = 3,074.28

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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.