Home / 3,789.43-5,229.51-2,110.81

Finding the Fourth Proportional to 3,789.43, 5,229.51 and 2,110.81

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Solution

The fourth proportional to 3,789.43, 5,229.51 and 2,110.81 is: 2,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.43 : 5,229.51 = 2,110.81 : x
  2. Step 2: Convert to fraction form
    3,789.43/5,229.51 = 2,110.81/x
  3. Step 3: Cross multiply
    3,789.43x = 5,229.51 × 2,110.81
  4. Step 4: Simplify right side
    3,789.43x = 11,038,502.69
  5. Step 5: Solve for x
    x = 11,038,502.69/3,789.43
  6. Step 6: Final answer
    x = 2,912.97

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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.