Home / 3,786.28-5,679.48-1,447.37

Finding the Fourth Proportional to 3,786.28, 5,679.48 and 1,447.37

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Solution

The fourth proportional to 3,786.28, 5,679.48 and 1,447.37 is: 2,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.28 : 5,679.48 = 1,447.37 : x
  2. Step 2: Convert to fraction form
    3,786.28/5,679.48 = 1,447.37/x
  3. Step 3: Cross multiply
    3,786.28x = 5,679.48 × 1,447.37
  4. Step 4: Simplify right side
    3,786.28x = 8,220,307.30
  5. Step 5: Solve for x
    x = 8,220,307.30/3,786.28
  6. Step 6: Final answer
    x = 2,171.08

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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.