Home / 3,858.86-5,325.18-2,090.44

Finding the Fourth Proportional to 3,858.86, 5,325.18 and 2,090.44

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Solution

The fourth proportional to 3,858.86, 5,325.18 and 2,090.44 is: 2,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.86 : 5,325.18 = 2,090.44 : x
  2. Step 2: Convert to fraction form
    3,858.86/5,325.18 = 2,090.44/x
  3. Step 3: Cross multiply
    3,858.86x = 5,325.18 × 2,090.44
  4. Step 4: Simplify right side
    3,858.86x = 11,131,969.28
  5. Step 5: Solve for x
    x = 11,131,969.28/3,858.86
  6. Step 6: Final answer
    x = 2,884.78

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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.