Home / 3,649.12-5,469.90-2,005.09

Finding the Fourth Proportional to 3,649.12, 5,469.90 and 2,005.09

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Solution

The fourth proportional to 3,649.12, 5,469.90 and 2,005.09 is: 3,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.12 : 5,469.90 = 2,005.09 : x
  2. Step 2: Convert to fraction form
    3,649.12/5,469.90 = 2,005.09/x
  3. Step 3: Cross multiply
    3,649.12x = 5,469.90 × 2,005.09
  4. Step 4: Simplify right side
    3,649.12x = 10,967,641.79
  5. Step 5: Solve for x
    x = 10,967,641.79/3,649.12
  6. Step 6: Final answer
    x = 3,005.56

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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.