Home / 2,122.92-3,176.38-2,005.80

Finding the Fourth Proportional to 2,122.92, 3,176.38 and 2,005.80

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Solution

The fourth proportional to 2,122.92, 3,176.38 and 2,005.80 is: 3,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.92 : 3,176.38 = 2,005.80 : x
  2. Step 2: Convert to fraction form
    2,122.92/3,176.38 = 2,005.80/x
  3. Step 3: Cross multiply
    2,122.92x = 3,176.38 × 2,005.80
  4. Step 4: Simplify right side
    2,122.92x = 6,371,183.00
  5. Step 5: Solve for x
    x = 6,371,183.00/2,122.92
  6. Step 6: Final answer
    x = 3,001.14

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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.