Home / 3,789.28-5,228.85-2,110.58

Finding the Fourth Proportional to 3,789.28, 5,228.85 and 2,110.58

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Solution

The fourth proportional to 3,789.28, 5,228.85 and 2,110.58 is: 2,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.28 : 5,228.85 = 2,110.58 : x
  2. Step 2: Convert to fraction form
    3,789.28/5,228.85 = 2,110.58/x
  3. Step 3: Cross multiply
    3,789.28x = 5,228.85 × 2,110.58
  4. Step 4: Simplify right side
    3,789.28x = 11,035,906.23
  5. Step 5: Solve for x
    x = 11,035,906.23/3,789.28
  6. Step 6: Final answer
    x = 2,912.40

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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.