Home / 3,409.43-5,120.31-3,135.02

Finding the Fourth Proportional to 3,409.43, 5,120.31 and 3,135.02

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Solution

The fourth proportional to 3,409.43, 5,120.31 and 3,135.02 is: 4,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.43 : 5,120.31 = 3,135.02 : x
  2. Step 2: Convert to fraction form
    3,409.43/5,120.31 = 3,135.02/x
  3. Step 3: Cross multiply
    3,409.43x = 5,120.31 × 3,135.02
  4. Step 4: Simplify right side
    3,409.43x = 16,052,274.26
  5. Step 5: Solve for x
    x = 16,052,274.26/3,409.43
  6. Step 6: Final answer
    x = 4,708.20

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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.