Home / 3,654.21-5,480.13-1,188.44

Finding the Fourth Proportional to 3,654.21, 5,480.13 and 1,188.44

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Solution

The fourth proportional to 3,654.21, 5,480.13 and 1,188.44 is: 1,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.21 : 5,480.13 = 1,188.44 : x
  2. Step 2: Convert to fraction form
    3,654.21/5,480.13 = 1,188.44/x
  3. Step 3: Cross multiply
    3,654.21x = 5,480.13 × 1,188.44
  4. Step 4: Simplify right side
    3,654.21x = 6,512,778.30
  5. Step 5: Solve for x
    x = 6,512,778.30/3,654.21
  6. Step 6: Final answer
    x = 1,782.27

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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.