Home / 4,190.75-6,286.89-1,724.23

Finding the Fourth Proportional to 4,190.75, 6,286.89 and 1,724.23

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Solution

The fourth proportional to 4,190.75, 6,286.89 and 1,724.23 is: 2,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.75 : 6,286.89 = 1,724.23 : x
  2. Step 2: Convert to fraction form
    4,190.75/6,286.89 = 1,724.23/x
  3. Step 3: Cross multiply
    4,190.75x = 6,286.89 × 1,724.23
  4. Step 4: Simplify right side
    4,190.75x = 10,840,044.34
  5. Step 5: Solve for x
    x = 10,840,044.34/4,190.75
  6. Step 6: Final answer
    x = 2,586.66

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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.