Home / 5,520.88-7,620.24-3,842.56

Finding the Fourth Proportional to 5,520.88, 7,620.24 and 3,842.56

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Solution

The fourth proportional to 5,520.88, 7,620.24 and 3,842.56 is: 5,303.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.88 : 7,620.24 = 3,842.56 : x
  2. Step 2: Convert to fraction form
    5,520.88/7,620.24 = 3,842.56/x
  3. Step 3: Cross multiply
    5,520.88x = 7,620.24 × 3,842.56
  4. Step 4: Simplify right side
    5,520.88x = 29,281,229.41
  5. Step 5: Solve for x
    x = 29,281,229.41/5,520.88
  6. Step 6: Final answer
    x = 5,303.73

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1.5x scale

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.