Home / 3,694.10-5,097.56-2,121.90

Finding the Fourth Proportional to 3,694.10, 5,097.56 and 2,121.90

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Solution

The fourth proportional to 3,694.10, 5,097.56 and 2,121.90 is: 2,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.10 : 5,097.56 = 2,121.90 : x
  2. Step 2: Convert to fraction form
    3,694.10/5,097.56 = 2,121.90/x
  3. Step 3: Cross multiply
    3,694.10x = 5,097.56 × 2,121.90
  4. Step 4: Simplify right side
    3,694.10x = 10,816,512.56
  5. Step 5: Solve for x
    x = 10,816,512.56/3,694.10
  6. Step 6: Final answer
    x = 2,928.05

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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.