Home / 3,208.15-4,812.36-1,906.75

Finding the Fourth Proportional to 3,208.15, 4,812.36 and 1,906.75

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Solution

The fourth proportional to 3,208.15, 4,812.36 and 1,906.75 is: 2,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.15 : 4,812.36 = 1,906.75 : x
  2. Step 2: Convert to fraction form
    3,208.15/4,812.36 = 1,906.75/x
  3. Step 3: Cross multiply
    3,208.15x = 4,812.36 × 1,906.75
  4. Step 4: Simplify right side
    3,208.15x = 9,175,967.43
  5. Step 5: Solve for x
    x = 9,175,967.43/3,208.15
  6. Step 6: Final answer
    x = 2,860.21

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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.