Home / 3,381.15-5,069.07-2,148.33

Finding the Fourth Proportional to 3,381.15, 5,069.07 and 2,148.33

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Solution

The fourth proportional to 3,381.15, 5,069.07 and 2,148.33 is: 3,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.15 : 5,069.07 = 2,148.33 : x
  2. Step 2: Convert to fraction form
    3,381.15/5,069.07 = 2,148.33/x
  3. Step 3: Cross multiply
    3,381.15x = 5,069.07 × 2,148.33
  4. Step 4: Simplify right side
    3,381.15x = 10,890,035.15
  5. Step 5: Solve for x
    x = 10,890,035.15/3,381.15
  6. Step 6: Final answer
    x = 3,220.81

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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.