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Finding the Fourth Proportional to 6,801.99, 10,204.05 and 2,121.05

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Solution

The fourth proportional to 6,801.99, 10,204.05 and 2,121.05 is: 3,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,801.99 : 10,204.05 = 2,121.05 : x
  2. Step 2: Convert to fraction form
    6,801.99/10,204.05 = 2,121.05/x
  3. Step 3: Cross multiply
    6,801.99x = 10,204.05 × 2,121.05
  4. Step 4: Simplify right side
    6,801.99x = 21,643,249.23
  5. Step 5: Solve for x
    x = 21,643,249.23/6,801.99
  6. Step 6: Final answer
    x = 3,181.90

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1.5x scale

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.