Home / 3,390.44-4,638.53-3,375.88

Finding the Fourth Proportional to 3,390.44, 4,638.53 and 3,375.88

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Solution

The fourth proportional to 3,390.44, 4,638.53 and 3,375.88 is: 4,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.44 : 4,638.53 = 3,375.88 : x
  2. Step 2: Convert to fraction form
    3,390.44/4,638.53 = 3,375.88/x
  3. Step 3: Cross multiply
    3,390.44x = 4,638.53 × 3,375.88
  4. Step 4: Simplify right side
    3,390.44x = 15,659,120.66
  5. Step 5: Solve for x
    x = 15,659,120.66/3,390.44
  6. Step 6: Final answer
    x = 4,618.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.