Home / 3,828.63-5,731.80-2,845.81

Finding the Fourth Proportional to 3,828.63, 5,731.80 and 2,845.81

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Solution

The fourth proportional to 3,828.63, 5,731.80 and 2,845.81 is: 4,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.63 : 5,731.80 = 2,845.81 : x
  2. Step 2: Convert to fraction form
    3,828.63/5,731.80 = 2,845.81/x
  3. Step 3: Cross multiply
    3,828.63x = 5,731.80 × 2,845.81
  4. Step 4: Simplify right side
    3,828.63x = 16,311,613.76
  5. Step 5: Solve for x
    x = 16,311,613.76/3,828.63
  6. Step 6: Final answer
    x = 4,260.43

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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.