Home / 3,690.90-5,540.40-2,046.60

Finding the Fourth Proportional to 3,690.90, 5,540.40 and 2,046.60

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Solution

The fourth proportional to 3,690.90, 5,540.40 and 2,046.60 is: 3,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.90 : 5,540.40 = 2,046.60 : x
  2. Step 2: Convert to fraction form
    3,690.90/5,540.40 = 2,046.60/x
  3. Step 3: Cross multiply
    3,690.90x = 5,540.40 × 2,046.60
  4. Step 4: Simplify right side
    3,690.90x = 11,338,982.64
  5. Step 5: Solve for x
    x = 11,338,982.64/3,690.90
  6. Step 6: Final answer
    x = 3,072.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.