Home / 5,425.35-8,138.29-1,727.85

Finding the Fourth Proportional to 5,425.35, 8,138.29 and 1,727.85

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Solution

The fourth proportional to 5,425.35, 8,138.29 and 1,727.85 is: 2,591.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.35 : 8,138.29 = 1,727.85 : x
  2. Step 2: Convert to fraction form
    5,425.35/8,138.29 = 1,727.85/x
  3. Step 3: Cross multiply
    5,425.35x = 8,138.29 × 1,727.85
  4. Step 4: Simplify right side
    5,425.35x = 14,061,744.38
  5. Step 5: Solve for x
    x = 14,061,744.38/5,425.35
  6. Step 6: Final answer
    x = 2,591.86

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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.