Home / 5,425.82-8,138.73-1,729.19

Finding the Fourth Proportional to 5,425.82, 8,138.73 and 1,729.19

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Solution

The fourth proportional to 5,425.82, 8,138.73 and 1,729.19 is: 2,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.82 : 8,138.73 = 1,729.19 : x
  2. Step 2: Convert to fraction form
    5,425.82/8,138.73 = 1,729.19/x
  3. Step 3: Cross multiply
    5,425.82x = 8,138.73 × 1,729.19
  4. Step 4: Simplify right side
    5,425.82x = 14,073,369.84
  5. Step 5: Solve for x
    x = 14,073,369.84/5,425.82
  6. Step 6: Final answer
    x = 2,593.78

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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.