Home / 3,698.70-5,104.23-2,020.12

Finding the Fourth Proportional to 3,698.70, 5,104.23 and 2,020.12

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Solution

The fourth proportional to 3,698.70, 5,104.23 and 2,020.12 is: 2,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.70 : 5,104.23 = 2,020.12 : x
  2. Step 2: Convert to fraction form
    3,698.70/5,104.23 = 2,020.12/x
  3. Step 3: Cross multiply
    3,698.70x = 5,104.23 × 2,020.12
  4. Step 4: Simplify right side
    3,698.70x = 10,311,144.35
  5. Step 5: Solve for x
    x = 10,311,144.35/3,698.70
  6. Step 6: Final answer
    x = 2,787.78

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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.