Home / 3,678.33-5,517.66-1,213.36

Finding the Fourth Proportional to 3,678.33, 5,517.66 and 1,213.36

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Solution

The fourth proportional to 3,678.33, 5,517.66 and 1,213.36 is: 1,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.33 : 5,517.66 = 1,213.36 : x
  2. Step 2: Convert to fraction form
    3,678.33/5,517.66 = 1,213.36/x
  3. Step 3: Cross multiply
    3,678.33x = 5,517.66 × 1,213.36
  4. Step 4: Simplify right side
    3,678.33x = 6,694,904.90
  5. Step 5: Solve for x
    x = 6,694,904.90/3,678.33
  6. Step 6: Final answer
    x = 1,820.10

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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.