Home / 3,816.89-5,725.45-1,219.83

Finding the Fourth Proportional to 3,816.89, 5,725.45 and 1,219.83

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Solution

The fourth proportional to 3,816.89, 5,725.45 and 1,219.83 is: 1,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.89 : 5,725.45 = 1,219.83 : x
  2. Step 2: Convert to fraction form
    3,816.89/5,725.45 = 1,219.83/x
  3. Step 3: Cross multiply
    3,816.89x = 5,725.45 × 1,219.83
  4. Step 4: Simplify right side
    3,816.89x = 6,984,072.62
  5. Step 5: Solve for x
    x = 6,984,072.62/3,816.89
  6. Step 6: Final answer
    x = 1,829.78

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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.