Home / 3,145.44-4,720.60-1,198.20

Finding the Fourth Proportional to 3,145.44, 4,720.60 and 1,198.20

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Solution

The fourth proportional to 3,145.44, 4,720.60 and 1,198.20 is: 1,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.44 : 4,720.60 = 1,198.20 : x
  2. Step 2: Convert to fraction form
    3,145.44/4,720.60 = 1,198.20/x
  3. Step 3: Cross multiply
    3,145.44x = 4,720.60 × 1,198.20
  4. Step 4: Simplify right side
    3,145.44x = 5,656,222.92
  5. Step 5: Solve for x
    x = 5,656,222.92/3,145.44
  6. Step 6: Final answer
    x = 1,798.23

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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.