Home / 3,540.09-4,885.82-2,028.12

Finding the Fourth Proportional to 3,540.09, 4,885.82 and 2,028.12

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Solution

The fourth proportional to 3,540.09, 4,885.82 and 2,028.12 is: 2,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.09 : 4,885.82 = 2,028.12 : x
  2. Step 2: Convert to fraction form
    3,540.09/4,885.82 = 2,028.12/x
  3. Step 3: Cross multiply
    3,540.09x = 4,885.82 × 2,028.12
  4. Step 4: Simplify right side
    3,540.09x = 9,909,019.12
  5. Step 5: Solve for x
    x = 9,909,019.12/3,540.09
  6. Step 6: Final answer
    x = 2,799.09

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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.