Home / 4,081.40-6,121.35-1,859.72

Finding the Fourth Proportional to 4,081.40, 6,121.35 and 1,859.72

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Solution

The fourth proportional to 4,081.40, 6,121.35 and 1,859.72 is: 2,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.40 : 6,121.35 = 1,859.72 : x
  2. Step 2: Convert to fraction form
    4,081.40/6,121.35 = 1,859.72/x
  3. Step 3: Cross multiply
    4,081.40x = 6,121.35 × 1,859.72
  4. Step 4: Simplify right side
    4,081.40x = 11,383,997.02
  5. Step 5: Solve for x
    x = 11,383,997.02/4,081.40
  6. Step 6: Final answer
    x = 2,789.24

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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.