Home / 3,847.28-5,767.29-1,871.66

Finding the Fourth Proportional to 3,847.28, 5,767.29 and 1,871.66

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Solution

The fourth proportional to 3,847.28, 5,767.29 and 1,871.66 is: 2,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.28 : 5,767.29 = 1,871.66 : x
  2. Step 2: Convert to fraction form
    3,847.28/5,767.29 = 1,871.66/x
  3. Step 3: Cross multiply
    3,847.28x = 5,767.29 × 1,871.66
  4. Step 4: Simplify right side
    3,847.28x = 10,794,406.00
  5. Step 5: Solve for x
    x = 10,794,406.00/3,847.28
  6. Step 6: Final answer
    x = 2,805.72

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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.