Home / 2,601.12-3,919.22-2,149.02

Finding the Fourth Proportional to 2,601.12, 3,919.22 and 2,149.02

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Solution

The fourth proportional to 2,601.12, 3,919.22 and 2,149.02 is: 3,238.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.12 : 3,919.22 = 2,149.02 : x
  2. Step 2: Convert to fraction form
    2,601.12/3,919.22 = 2,149.02/x
  3. Step 3: Cross multiply
    2,601.12x = 3,919.22 × 2,149.02
  4. Step 4: Simplify right side
    2,601.12x = 8,422,482.16
  5. Step 5: Solve for x
    x = 8,422,482.16/2,601.12
  6. Step 6: Final answer
    x = 3,238.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.