Home / 3,847.28-5,771.37-1,381.89

Finding the Fourth Proportional to 3,847.28, 5,771.37 and 1,381.89

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Solution

The fourth proportional to 3,847.28, 5,771.37 and 1,381.89 is: 2,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.28 : 5,771.37 = 1,381.89 : x
  2. Step 2: Convert to fraction form
    3,847.28/5,771.37 = 1,381.89/x
  3. Step 3: Cross multiply
    3,847.28x = 5,771.37 × 1,381.89
  4. Step 4: Simplify right side
    3,847.28x = 7,975,398.49
  5. Step 5: Solve for x
    x = 7,975,398.49/3,847.28
  6. Step 6: Final answer
    x = 2,073.00

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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.