Home / 3,147.09-4,720.80-1,067.16

Finding the Fourth Proportional to 3,147.09, 4,720.80 and 1,067.16

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Solution

The fourth proportional to 3,147.09, 4,720.80 and 1,067.16 is: 1,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.09 : 4,720.80 = 1,067.16 : x
  2. Step 2: Convert to fraction form
    3,147.09/4,720.80 = 1,067.16/x
  3. Step 3: Cross multiply
    3,147.09x = 4,720.80 × 1,067.16
  4. Step 4: Simplify right side
    3,147.09x = 5,037,848.93
  5. Step 5: Solve for x
    x = 5,037,848.93/3,147.09
  6. Step 6: Final answer
    x = 1,600.80

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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.