Home / 3,255.31-4,883.88-1,308.88

Finding the Fourth Proportional to 3,255.31, 4,883.88 and 1,308.88

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Solution

The fourth proportional to 3,255.31, 4,883.88 and 1,308.88 is: 1,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.31 : 4,883.88 = 1,308.88 : x
  2. Step 2: Convert to fraction form
    3,255.31/4,883.88 = 1,308.88/x
  3. Step 3: Cross multiply
    3,255.31x = 4,883.88 × 1,308.88
  4. Step 4: Simplify right side
    3,255.31x = 6,392,412.85
  5. Step 5: Solve for x
    x = 6,392,412.85/3,255.31
  6. Step 6: Final answer
    x = 1,963.69

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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.