Home / 3,918.96-5,872.68-3,800.70

Finding the Fourth Proportional to 3,918.96, 5,872.68 and 3,800.70

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Solution

The fourth proportional to 3,918.96, 5,872.68 and 3,800.70 is: 5,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.96 : 5,872.68 = 3,800.70 : x
  2. Step 2: Convert to fraction form
    3,918.96/5,872.68 = 3,800.70/x
  3. Step 3: Cross multiply
    3,918.96x = 5,872.68 × 3,800.70
  4. Step 4: Simplify right side
    3,918.96x = 22,320,294.88
  5. Step 5: Solve for x
    x = 22,320,294.88/3,918.96
  6. Step 6: Final answer
    x = 5,695.46

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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.