Home / 2,122.08-3,180.21-1,601.64

Finding the Fourth Proportional to 2,122.08, 3,180.21 and 1,601.64

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Solution

The fourth proportional to 2,122.08, 3,180.21 and 1,601.64 is: 2,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.08 : 3,180.21 = 1,601.64 : x
  2. Step 2: Convert to fraction form
    2,122.08/3,180.21 = 1,601.64/x
  3. Step 3: Cross multiply
    2,122.08x = 3,180.21 × 1,601.64
  4. Step 4: Simplify right side
    2,122.08x = 5,093,551.54
  5. Step 5: Solve for x
    x = 5,093,551.54/2,122.08
  6. Step 6: Final answer
    x = 2,400.26

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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.