Home / 3,405.20-5,109.39-2,021.26

Finding the Fourth Proportional to 3,405.20, 5,109.39 and 2,021.26

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Solution

The fourth proportional to 3,405.20, 5,109.39 and 2,021.26 is: 3,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.20 : 5,109.39 = 2,021.26 : x
  2. Step 2: Convert to fraction form
    3,405.20/5,109.39 = 2,021.26/x
  3. Step 3: Cross multiply
    3,405.20x = 5,109.39 × 2,021.26
  4. Step 4: Simplify right side
    3,405.20x = 10,327,395.53
  5. Step 5: Solve for x
    x = 10,327,395.53/3,405.20
  6. Step 6: Final answer
    x = 3,032.83

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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.