Home / 3,884.37-5,360.25-2,115.93

Finding the Fourth Proportional to 3,884.37, 5,360.25 and 2,115.93

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Solution

The fourth proportional to 3,884.37, 5,360.25 and 2,115.93 is: 2,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.37 : 5,360.25 = 2,115.93 : x
  2. Step 2: Convert to fraction form
    3,884.37/5,360.25 = 2,115.93/x
  3. Step 3: Cross multiply
    3,884.37x = 5,360.25 × 2,115.93
  4. Step 4: Simplify right side
    3,884.37x = 11,341,913.78
  5. Step 5: Solve for x
    x = 11,341,913.78/3,884.37
  6. Step 6: Final answer
    x = 2,919.89

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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.