Home / 3,828.57-5,731.92-2,898.69

Finding the Fourth Proportional to 3,828.57, 5,731.92 and 2,898.69

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Solution

The fourth proportional to 3,828.57, 5,731.92 and 2,898.69 is: 4,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.57 : 5,731.92 = 2,898.69 : x
  2. Step 2: Convert to fraction form
    3,828.57/5,731.92 = 2,898.69/x
  3. Step 3: Cross multiply
    3,828.57x = 5,731.92 × 2,898.69
  4. Step 4: Simplify right side
    3,828.57x = 16,615,059.18
  5. Step 5: Solve for x
    x = 16,615,059.18/3,828.57
  6. Step 6: Final answer
    x = 4,339.76

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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.