Home / 3,677.38-5,074.79-2,021.38

Finding the Fourth Proportional to 3,677.38, 5,074.79 and 2,021.38

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Solution

The fourth proportional to 3,677.38, 5,074.79 and 2,021.38 is: 2,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.38 : 5,074.79 = 2,021.38 : x
  2. Step 2: Convert to fraction form
    3,677.38/5,074.79 = 2,021.38/x
  3. Step 3: Cross multiply
    3,677.38x = 5,074.79 × 2,021.38
  4. Step 4: Simplify right side
    3,677.38x = 10,258,043.53
  5. Step 5: Solve for x
    x = 10,258,043.53/3,677.38
  6. Step 6: Final answer
    x = 2,789.50

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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.