Home / 3,309.21-4,566.20-2,131.88

Finding the Fourth Proportional to 3,309.21, 4,566.20 and 2,131.88

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Solution

The fourth proportional to 3,309.21, 4,566.20 and 2,131.88 is: 2,941.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.21 : 4,566.20 = 2,131.88 : x
  2. Step 2: Convert to fraction form
    3,309.21/4,566.20 = 2,131.88/x
  3. Step 3: Cross multiply
    3,309.21x = 4,566.20 × 2,131.88
  4. Step 4: Simplify right side
    3,309.21x = 9,734,556.97
  5. Step 5: Solve for x
    x = 9,734,556.97/3,309.21
  6. Step 6: Final answer
    x = 2,941.66

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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.