Home / 3,378.34-5,067.36-1,187.09

Finding the Fourth Proportional to 3,378.34, 5,067.36 and 1,187.09

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Solution

The fourth proportional to 3,378.34, 5,067.36 and 1,187.09 is: 1,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.34 : 5,067.36 = 1,187.09 : x
  2. Step 2: Convert to fraction form
    3,378.34/5,067.36 = 1,187.09/x
  3. Step 3: Cross multiply
    3,378.34x = 5,067.36 × 1,187.09
  4. Step 4: Simplify right side
    3,378.34x = 6,015,406.05
  5. Step 5: Solve for x
    x = 6,015,406.05/3,378.34
  6. Step 6: Final answer
    x = 1,780.58

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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.