Home / 2,190.75-3,286.77-2,060.20

Finding the Fourth Proportional to 2,190.75, 3,286.77 and 2,060.20

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Solution

The fourth proportional to 2,190.75, 3,286.77 and 2,060.20 is: 3,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.75 : 3,286.77 = 2,060.20 : x
  2. Step 2: Convert to fraction form
    2,190.75/3,286.77 = 2,060.20/x
  3. Step 3: Cross multiply
    2,190.75x = 3,286.77 × 2,060.20
  4. Step 4: Simplify right side
    2,190.75x = 6,771,403.55
  5. Step 5: Solve for x
    x = 6,771,403.55/2,190.75
  6. Step 6: Final answer
    x = 3,090.91

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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.