Home / 3,860.14-5,790.48-1,911.82

Finding the Fourth Proportional to 3,860.14, 5,790.48 and 1,911.82

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Solution

The fourth proportional to 3,860.14, 5,790.48 and 1,911.82 is: 2,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.14 : 5,790.48 = 1,911.82 : x
  2. Step 2: Convert to fraction form
    3,860.14/5,790.48 = 1,911.82/x
  3. Step 3: Cross multiply
    3,860.14x = 5,790.48 × 1,911.82
  4. Step 4: Simplify right side
    3,860.14x = 11,070,355.47
  5. Step 5: Solve for x
    x = 11,070,355.47/3,860.14
  6. Step 6: Final answer
    x = 2,867.86

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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.