Home / 3,929.25-5,896.58-1,620.75

Finding the Fourth Proportional to 3,929.25, 5,896.58 and 1,620.75

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Solution

The fourth proportional to 3,929.25, 5,896.58 and 1,620.75 is: 2,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.25 : 5,896.58 = 1,620.75 : x
  2. Step 2: Convert to fraction form
    3,929.25/5,896.58 = 1,620.75/x
  3. Step 3: Cross multiply
    3,929.25x = 5,896.58 × 1,620.75
  4. Step 4: Simplify right side
    3,929.25x = 9,556,873.93
  5. Step 5: Solve for x
    x = 9,556,873.93/3,929.25
  6. Step 6: Final answer
    x = 2,432.24

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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.