Home / 3,789.21-5,228.41-2,110.57

Finding the Fourth Proportional to 3,789.21, 5,228.41 and 2,110.57

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Solution

The fourth proportional to 3,789.21, 5,228.41 and 2,110.57 is: 2,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.21 : 5,228.41 = 2,110.57 : x
  2. Step 2: Convert to fraction form
    3,789.21/5,228.41 = 2,110.57/x
  3. Step 3: Cross multiply
    3,789.21x = 5,228.41 × 2,110.57
  4. Step 4: Simplify right side
    3,789.21x = 11,034,921.22
  5. Step 5: Solve for x
    x = 11,034,921.22/3,789.21
  6. Step 6: Final answer
    x = 2,912.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.