Home / 4,091.74-6,139.32-2,145.22

Finding the Fourth Proportional to 4,091.74, 6,139.32 and 2,145.22

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Solution

The fourth proportional to 4,091.74, 6,139.32 and 2,145.22 is: 3,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.74 : 6,139.32 = 2,145.22 : x
  2. Step 2: Convert to fraction form
    4,091.74/6,139.32 = 2,145.22/x
  3. Step 3: Cross multiply
    4,091.74x = 6,139.32 × 2,145.22
  4. Step 4: Simplify right side
    4,091.74x = 13,170,192.05
  5. Step 5: Solve for x
    x = 13,170,192.05/4,091.74
  6. Step 6: Final answer
    x = 3,218.73

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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.