Home / 8,120.92-12,183.18-2,574.60

Finding the Fourth Proportional to 8,120.92, 12,183.18 and 2,574.60

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Solution

The fourth proportional to 8,120.92, 12,183.18 and 2,574.60 is: 3,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.92 : 12,183.18 = 2,574.60 : x
  2. Step 2: Convert to fraction form
    8,120.92/12,183.18 = 2,574.60/x
  3. Step 3: Cross multiply
    8,120.92x = 12,183.18 × 2,574.60
  4. Step 4: Simplify right side
    8,120.92x = 31,366,754.31
  5. Step 5: Solve for x
    x = 31,366,754.31/8,120.92
  6. Step 6: Final answer
    x = 3,862.46

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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.