Home / 6,801.36-10,203-2,121.72

Finding the Fourth Proportional to 6,801.36, 10,203 and 2,121.72

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Solution

The fourth proportional to 6,801.36, 10,203 and 2,121.72 is: 3,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,801.36 : 10,203 = 2,121.72 : x
  2. Step 2: Convert to fraction form
    6,801.36/10,203 = 2,121.72/x
  3. Step 3: Cross multiply
    6,801.36x = 10,203 × 2,121.72
  4. Step 4: Simplify right side
    6,801.36x = 21,647,909.16
  5. Step 5: Solve for x
    x = 21,647,909.16/6,801.36
  6. Step 6: Final answer
    x = 3,182.88

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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.