Home / 2,115.25-2,919.05-1,183.93

Finding the Fourth Proportional to 2,115.25, 2,919.05 and 1,183.93

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Solution

The fourth proportional to 2,115.25, 2,919.05 and 1,183.93 is: 1,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.25 : 2,919.05 = 1,183.93 : x
  2. Step 2: Convert to fraction form
    2,115.25/2,919.05 = 1,183.93/x
  3. Step 3: Cross multiply
    2,115.25x = 2,919.05 × 1,183.93
  4. Step 4: Simplify right side
    2,115.25x = 3,455,944.95
  5. Step 5: Solve for x
    x = 3,455,944.95/2,115.25
  6. Step 6: Final answer
    x = 1,633.82

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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.