Home / 3,881.46-5,820.49-1,107.51

Finding the Fourth Proportional to 3,881.46, 5,820.49 and 1,107.51

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Solution

The fourth proportional to 3,881.46, 5,820.49 and 1,107.51 is: 1,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.46 : 5,820.49 = 1,107.51 : x
  2. Step 2: Convert to fraction form
    3,881.46/5,820.49 = 1,107.51/x
  3. Step 3: Cross multiply
    3,881.46x = 5,820.49 × 1,107.51
  4. Step 4: Simplify right side
    3,881.46x = 6,446,250.88
  5. Step 5: Solve for x
    x = 6,446,250.88/3,881.46
  6. Step 6: Final answer
    x = 1,660.78

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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.