Home / 3,308.64-4,959.68-2,138.44

Finding the Fourth Proportional to 3,308.64, 4,959.68 and 2,138.44

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Solution

The fourth proportional to 3,308.64, 4,959.68 and 2,138.44 is: 3,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.64 : 4,959.68 = 2,138.44 : x
  2. Step 2: Convert to fraction form
    3,308.64/4,959.68 = 2,138.44/x
  3. Step 3: Cross multiply
    3,308.64x = 4,959.68 × 2,138.44
  4. Step 4: Simplify right side
    3,308.64x = 10,605,978.10
  5. Step 5: Solve for x
    x = 10,605,978.10/3,308.64
  6. Step 6: Final answer
    x = 3,205.54

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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.