Home / 3,378.53-5,067.55-1,187.28

Finding the Fourth Proportional to 3,378.53, 5,067.55 and 1,187.28

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Solution

The fourth proportional to 3,378.53, 5,067.55 and 1,187.28 is: 1,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.53 : 5,067.55 = 1,187.28 : x
  2. Step 2: Convert to fraction form
    3,378.53/5,067.55 = 1,187.28/x
  3. Step 3: Cross multiply
    3,378.53x = 5,067.55 × 1,187.28
  4. Step 4: Simplify right side
    3,378.53x = 6,016,594.83
  5. Step 5: Solve for x
    x = 6,016,594.83/3,378.53
  6. Step 6: Final answer
    x = 1,780.83

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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.