Home / 3,358.08-5,034-2,121.90

Finding the Fourth Proportional to 3,358.08, 5,034 and 2,121.90

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Solution

The fourth proportional to 3,358.08, 5,034 and 2,121.90 is: 3,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.08 : 5,034 = 2,121.90 : x
  2. Step 2: Convert to fraction form
    3,358.08/5,034 = 2,121.90/x
  3. Step 3: Cross multiply
    3,358.08x = 5,034 × 2,121.90
  4. Step 4: Simplify right side
    3,358.08x = 10,681,644.60
  5. Step 5: Solve for x
    x = 10,681,644.60/3,358.08
  6. Step 6: Final answer
    x = 3,180.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.