Home / 4,120.20-5,679.27-3,234.51

Finding the Fourth Proportional to 4,120.20, 5,679.27 and 3,234.51

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Solution

The fourth proportional to 4,120.20, 5,679.27 and 3,234.51 is: 4,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.20 : 5,679.27 = 3,234.51 : x
  2. Step 2: Convert to fraction form
    4,120.20/5,679.27 = 3,234.51/x
  3. Step 3: Cross multiply
    4,120.20x = 5,679.27 × 3,234.51
  4. Step 4: Simplify right side
    4,120.20x = 18,369,655.61
  5. Step 5: Solve for x
    x = 18,369,655.61/4,120.20
  6. Step 6: Final answer
    x = 4,458.44

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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.