Home / 3,627.21-5,008.40-2,786.60

Finding the Fourth Proportional to 3,627.21, 5,008.40 and 2,786.60

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Solution

The fourth proportional to 3,627.21, 5,008.40 and 2,786.60 is: 3,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.21 : 5,008.40 = 2,786.60 : x
  2. Step 2: Convert to fraction form
    3,627.21/5,008.40 = 2,786.60/x
  3. Step 3: Cross multiply
    3,627.21x = 5,008.40 × 2,786.60
  4. Step 4: Simplify right side
    3,627.21x = 13,956,416.48
  5. Step 5: Solve for x
    x = 13,956,416.48/3,627.21
  6. Step 6: Final answer
    x = 3,847.70

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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.