Home / 4,091.45-6,139.26-2,143.13

Finding the Fourth Proportional to 4,091.45, 6,139.26 and 2,143.13

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Solution

The fourth proportional to 4,091.45, 6,139.26 and 2,143.13 is: 3,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.45 : 6,139.26 = 2,143.13 : x
  2. Step 2: Convert to fraction form
    4,091.45/6,139.26 = 2,143.13/x
  3. Step 3: Cross multiply
    4,091.45x = 6,139.26 × 2,143.13
  4. Step 4: Simplify right side
    4,091.45x = 13,157,201.59
  5. Step 5: Solve for x
    x = 13,157,201.59/4,091.45
  6. Step 6: Final answer
    x = 3,215.78

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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.