Home / 3,170.60-4,755.90-2,685.80

Finding the Fourth Proportional to 3,170.60, 4,755.90 and 2,685.80

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Solution

The fourth proportional to 3,170.60, 4,755.90 and 2,685.80 is: 4,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.60 : 4,755.90 = 2,685.80 : x
  2. Step 2: Convert to fraction form
    3,170.60/4,755.90 = 2,685.80/x
  3. Step 3: Cross multiply
    3,170.60x = 4,755.90 × 2,685.80
  4. Step 4: Simplify right side
    3,170.60x = 12,773,396.22
  5. Step 5: Solve for x
    x = 12,773,396.22/3,170.60
  6. Step 6: Final answer
    x = 4,028.70

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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.