Home / 6,091.68-9,138.60-2,143.20

Finding the Fourth Proportional to 6,091.68, 9,138.60 and 2,143.20

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Solution

The fourth proportional to 6,091.68, 9,138.60 and 2,143.20 is: 3,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,091.68 : 9,138.60 = 2,143.20 : x
  2. Step 2: Convert to fraction form
    6,091.68/9,138.60 = 2,143.20/x
  3. Step 3: Cross multiply
    6,091.68x = 9,138.60 × 2,143.20
  4. Step 4: Simplify right side
    6,091.68x = 19,585,847.52
  5. Step 5: Solve for x
    x = 19,585,847.52/6,091.68
  6. Step 6: Final answer
    x = 3,215.18

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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.