Home / 3,519.66-5,273.58-2,128.77

Finding the Fourth Proportional to 3,519.66, 5,273.58 and 2,128.77

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Solution

The fourth proportional to 3,519.66, 5,273.58 and 2,128.77 is: 3,189.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.66 : 5,273.58 = 2,128.77 : x
  2. Step 2: Convert to fraction form
    3,519.66/5,273.58 = 2,128.77/x
  3. Step 3: Cross multiply
    3,519.66x = 5,273.58 × 2,128.77
  4. Step 4: Simplify right side
    3,519.66x = 11,226,238.90
  5. Step 5: Solve for x
    x = 11,226,238.90/3,519.66
  6. Step 6: Final answer
    x = 3,189.58

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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.