Home / 3,758.85-5,187.27-2,080.21

Finding the Fourth Proportional to 3,758.85, 5,187.27 and 2,080.21

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Solution

The fourth proportional to 3,758.85, 5,187.27 and 2,080.21 is: 2,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.85 : 5,187.27 = 2,080.21 : x
  2. Step 2: Convert to fraction form
    3,758.85/5,187.27 = 2,080.21/x
  3. Step 3: Cross multiply
    3,758.85x = 5,187.27 × 2,080.21
  4. Step 4: Simplify right side
    3,758.85x = 10,790,610.93
  5. Step 5: Solve for x
    x = 10,790,610.93/3,758.85
  6. Step 6: Final answer
    x = 2,870.73

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1.5x scale

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.