Home / 3,147.12-4,720.62-1,067.09

Finding the Fourth Proportional to 3,147.12, 4,720.62 and 1,067.09

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Solution

The fourth proportional to 3,147.12, 4,720.62 and 1,067.09 is: 1,600.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.12 : 4,720.62 = 1,067.09 : x
  2. Step 2: Convert to fraction form
    3,147.12/4,720.62 = 1,067.09/x
  3. Step 3: Cross multiply
    3,147.12x = 4,720.62 × 1,067.09
  4. Step 4: Simplify right side
    3,147.12x = 5,037,302.79
  5. Step 5: Solve for x
    x = 5,037,302.79/3,147.12
  6. Step 6: Final answer
    x = 1,600.61

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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.