Home / 3,390.22-5,087.55-1,198.86

Finding the Fourth Proportional to 3,390.22, 5,087.55 and 1,198.86

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Solution

The fourth proportional to 3,390.22, 5,087.55 and 1,198.86 is: 1,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.22 : 5,087.55 = 1,198.86 : x
  2. Step 2: Convert to fraction form
    3,390.22/5,087.55 = 1,198.86/x
  3. Step 3: Cross multiply
    3,390.22x = 5,087.55 × 1,198.86
  4. Step 4: Simplify right side
    3,390.22x = 6,099,260.19
  5. Step 5: Solve for x
    x = 6,099,260.19/3,390.22
  6. Step 6: Final answer
    x = 1,799.08

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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.