Home / 3,811.82-5,717.58-1,038.92

Finding the Fourth Proportional to 3,811.82, 5,717.58 and 1,038.92

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Solution

The fourth proportional to 3,811.82, 5,717.58 and 1,038.92 is: 1,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.82 : 5,717.58 = 1,038.92 : x
  2. Step 2: Convert to fraction form
    3,811.82/5,717.58 = 1,038.92/x
  3. Step 3: Cross multiply
    3,811.82x = 5,717.58 × 1,038.92
  4. Step 4: Simplify right side
    3,811.82x = 5,940,108.21
  5. Step 5: Solve for x
    x = 5,940,108.21/3,811.82
  6. Step 6: Final answer
    x = 1,558.34

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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.