Home / 3,789.40-5,229.45-2,110.96

Finding the Fourth Proportional to 3,789.40, 5,229.45 and 2,110.96

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Solution

The fourth proportional to 3,789.40, 5,229.45 and 2,110.96 is: 2,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.40 : 5,229.45 = 2,110.96 : x
  2. Step 2: Convert to fraction form
    3,789.40/5,229.45 = 2,110.96/x
  3. Step 3: Cross multiply
    3,789.40x = 5,229.45 × 2,110.96
  4. Step 4: Simplify right side
    3,789.40x = 11,039,123.07
  5. Step 5: Solve for x
    x = 11,039,123.07/3,789.40
  6. Step 6: Final answer
    x = 2,913.16

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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.