Home / 3,350.72-5,028.96-1,620.80

Finding the Fourth Proportional to 3,350.72, 5,028.96 and 1,620.80

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Solution

The fourth proportional to 3,350.72, 5,028.96 and 1,620.80 is: 2,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,350.72 : 5,028.96 = 1,620.80 : x
  2. Step 2: Convert to fraction form
    3,350.72/5,028.96 = 1,620.80/x
  3. Step 3: Cross multiply
    3,350.72x = 5,028.96 × 1,620.80
  4. Step 4: Simplify right side
    3,350.72x = 8,150,938.37
  5. Step 5: Solve for x
    x = 8,150,938.37/3,350.72
  6. Step 6: Final answer
    x = 2,432.59

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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.