Home / 5,425.38-8,138.68-1,727.33

Finding the Fourth Proportional to 5,425.38, 8,138.68 and 1,727.33

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Solution

The fourth proportional to 5,425.38, 8,138.68 and 1,727.33 is: 2,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.38 : 8,138.68 = 1,727.33 : x
  2. Step 2: Convert to fraction form
    5,425.38/8,138.68 = 1,727.33/x
  3. Step 3: Cross multiply
    5,425.38x = 8,138.68 × 1,727.33
  4. Step 4: Simplify right side
    5,425.38x = 14,058,141.11
  5. Step 5: Solve for x
    x = 14,058,141.11/5,425.38
  6. Step 6: Final answer
    x = 2,591.18

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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.