Home / 5,424.20-8,135.96-1,729.09

Finding the Fourth Proportional to 5,424.20, 8,135.96 and 1,729.09

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Solution

The fourth proportional to 5,424.20, 8,135.96 and 1,729.09 is: 2,593.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.20 : 8,135.96 = 1,729.09 : x
  2. Step 2: Convert to fraction form
    5,424.20/8,135.96 = 1,729.09/x
  3. Step 3: Cross multiply
    5,424.20x = 8,135.96 × 1,729.09
  4. Step 4: Simplify right side
    5,424.20x = 14,067,778.09
  5. Step 5: Solve for x
    x = 14,067,778.09/5,424.20
  6. Step 6: Final answer
    x = 2,593.52

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Double scale
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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.