Home / 3,821.79-5,727.83-1,628.31

Finding the Fourth Proportional to 3,821.79, 5,727.83 and 1,628.31

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Solution

The fourth proportional to 3,821.79, 5,727.83 and 1,628.31 is: 2,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.79 : 5,727.83 = 1,628.31 : x
  2. Step 2: Convert to fraction form
    3,821.79/5,727.83 = 1,628.31/x
  3. Step 3: Cross multiply
    3,821.79x = 5,727.83 × 1,628.31
  4. Step 4: Simplify right side
    3,821.79x = 9,326,674.73
  5. Step 5: Solve for x
    x = 9,326,674.73/3,821.79
  6. Step 6: Final answer
    x = 2,440.39

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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.