Home / 3,408.00-5,109.41-1,329.47

Finding the Fourth Proportional to 3,408.00, 5,109.41 and 1,329.47

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Solution

The fourth proportional to 3,408.00, 5,109.41 and 1,329.47 is: 1,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.00 : 5,109.41 = 1,329.47 : x
  2. Step 2: Convert to fraction form
    3,408.00/5,109.41 = 1,329.47/x
  3. Step 3: Cross multiply
    3,408.00x = 5,109.41 × 1,329.47
  4. Step 4: Simplify right side
    3,408.00x = 6,792,795.46
  5. Step 5: Solve for x
    x = 6,792,795.46/3,408.00
  6. Step 6: Final answer
    x = 1,993.19

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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.