Home / 3,847.56-5,769.91-1,381.71

Finding the Fourth Proportional to 3,847.56, 5,769.91 and 1,381.71

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Solution

The fourth proportional to 3,847.56, 5,769.91 and 1,381.71 is: 2,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.56 : 5,769.91 = 1,381.71 : x
  2. Step 2: Convert to fraction form
    3,847.56/5,769.91 = 1,381.71/x
  3. Step 3: Cross multiply
    3,847.56x = 5,769.91 × 1,381.71
  4. Step 4: Simplify right side
    3,847.56x = 7,972,342.35
  5. Step 5: Solve for x
    x = 7,972,342.35/3,847.56
  6. Step 6: Final answer
    x = 2,072.05

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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.