Home / 3,378.21-5,067.34-1,186.92

Finding the Fourth Proportional to 3,378.21, 5,067.34 and 1,186.92

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Solution

The fourth proportional to 3,378.21, 5,067.34 and 1,186.92 is: 1,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.21 : 5,067.34 = 1,186.92 : x
  2. Step 2: Convert to fraction form
    3,378.21/5,067.34 = 1,186.92/x
  3. Step 3: Cross multiply
    3,378.21x = 5,067.34 × 1,186.92
  4. Step 4: Simplify right side
    3,378.21x = 6,014,530.90
  5. Step 5: Solve for x
    x = 6,014,530.90/3,378.21
  6. Step 6: Final answer
    x = 1,780.39

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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.