Home / 3,519.78-5,268.73-2,218.52

Finding the Fourth Proportional to 3,519.78, 5,268.73 and 2,218.52

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Solution

The fourth proportional to 3,519.78, 5,268.73 and 2,218.52 is: 3,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.78 : 5,268.73 = 2,218.52 : x
  2. Step 2: Convert to fraction form
    3,519.78/5,268.73 = 2,218.52/x
  3. Step 3: Cross multiply
    3,519.78x = 5,268.73 × 2,218.52
  4. Step 4: Simplify right side
    3,519.78x = 11,688,782.88
  5. Step 5: Solve for x
    x = 11,688,782.88/3,519.78
  6. Step 6: Final answer
    x = 3,320.88

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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.