Home / 2,755.90-4,129.96-2,136.70

Finding the Fourth Proportional to 2,755.90, 4,129.96 and 2,136.70

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Solution

The fourth proportional to 2,755.90, 4,129.96 and 2,136.70 is: 3,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.90 : 4,129.96 = 2,136.70 : x
  2. Step 2: Convert to fraction form
    2,755.90/4,129.96 = 2,136.70/x
  3. Step 3: Cross multiply
    2,755.90x = 4,129.96 × 2,136.70
  4. Step 4: Simplify right side
    2,755.90x = 8,824,485.53
  5. Step 5: Solve for x
    x = 8,824,485.53/2,755.90
  6. Step 6: Final answer
    x = 3,202.03

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1.5x scale

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.