Home / 3,381.12-5,067.54-1,921.50

Finding the Fourth Proportional to 3,381.12, 5,067.54 and 1,921.50

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Solution

The fourth proportional to 3,381.12, 5,067.54 and 1,921.50 is: 2,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.12 : 5,067.54 = 1,921.50 : x
  2. Step 2: Convert to fraction form
    3,381.12/5,067.54 = 1,921.50/x
  3. Step 3: Cross multiply
    3,381.12x = 5,067.54 × 1,921.50
  4. Step 4: Simplify right side
    3,381.12x = 9,737,278.11
  5. Step 5: Solve for x
    x = 9,737,278.11/3,381.12
  6. Step 6: Final answer
    x = 2,879.90

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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.