Home / 3,975.68-5,481.45-2,556.86

Finding the Fourth Proportional to 3,975.68, 5,481.45 and 2,556.86

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Solution

The fourth proportional to 3,975.68, 5,481.45 and 2,556.86 is: 3,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.68 : 5,481.45 = 2,556.86 : x
  2. Step 2: Convert to fraction form
    3,975.68/5,481.45 = 2,556.86/x
  3. Step 3: Cross multiply
    3,975.68x = 5,481.45 × 2,556.86
  4. Step 4: Simplify right side
    3,975.68x = 14,015,272.84
  5. Step 5: Solve for x
    x = 14,015,272.84/3,975.68
  6. Step 6: Final answer
    x = 3,525.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.