Home / 3,922.12-5,879.47-1,455.27

Finding the Fourth Proportional to 3,922.12, 5,879.47 and 1,455.27

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Solution

The fourth proportional to 3,922.12, 5,879.47 and 1,455.27 is: 2,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.12 : 5,879.47 = 1,455.27 : x
  2. Step 2: Convert to fraction form
    3,922.12/5,879.47 = 1,455.27/x
  3. Step 3: Cross multiply
    3,922.12x = 5,879.47 × 1,455.27
  4. Step 4: Simplify right side
    3,922.12x = 8,556,216.31
  5. Step 5: Solve for x
    x = 8,556,216.31/3,922.12
  6. Step 6: Final answer
    x = 2,181.53

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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.