Home / 5,090.85-7,028.27-3,893.62

Finding the Fourth Proportional to 5,090.85, 7,028.27 and 3,893.62

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Solution

The fourth proportional to 5,090.85, 7,028.27 and 3,893.62 is: 5,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.85 : 7,028.27 = 3,893.62 : x
  2. Step 2: Convert to fraction form
    5,090.85/7,028.27 = 3,893.62/x
  3. Step 3: Cross multiply
    5,090.85x = 7,028.27 × 3,893.62
  4. Step 4: Simplify right side
    5,090.85x = 27,365,403.38
  5. Step 5: Solve for x
    x = 27,365,403.38/5,090.85
  6. Step 6: Final answer
    x = 5,375.41

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1.5x scale

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.