Home / 3,146.92-4,340.46-2,151.16

Finding the Fourth Proportional to 3,146.92, 4,340.46 and 2,151.16

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Solution

The fourth proportional to 3,146.92, 4,340.46 and 2,151.16 is: 2,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.92 : 4,340.46 = 2,151.16 : x
  2. Step 2: Convert to fraction form
    3,146.92/4,340.46 = 2,151.16/x
  3. Step 3: Cross multiply
    3,146.92x = 4,340.46 × 2,151.16
  4. Step 4: Simplify right side
    3,146.92x = 9,337,023.93
  5. Step 5: Solve for x
    x = 9,337,023.93/3,146.92
  6. Step 6: Final answer
    x = 2,967.04

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.