Home / 3,786.21-5,679.45-3,481.74

Finding the Fourth Proportional to 3,786.21, 5,679.45 and 3,481.74

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Solution

The fourth proportional to 3,786.21, 5,679.45 and 3,481.74 is: 5,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.21 : 5,679.45 = 3,481.74 : x
  2. Step 2: Convert to fraction form
    3,786.21/5,679.45 = 3,481.74/x
  3. Step 3: Cross multiply
    3,786.21x = 5,679.45 × 3,481.74
  4. Step 4: Simplify right side
    3,786.21x = 19,774,368.24
  5. Step 5: Solve for x
    x = 19,774,368.24/3,786.21
  6. Step 6: Final answer
    x = 5,222.73

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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.