Home / 3,399.45-5,090.94-1,729.18

Finding the Fourth Proportional to 3,399.45, 5,090.94 and 1,729.18

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Solution

The fourth proportional to 3,399.45, 5,090.94 and 1,729.18 is: 2,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.45 : 5,090.94 = 1,729.18 : x
  2. Step 2: Convert to fraction form
    3,399.45/5,090.94 = 1,729.18/x
  3. Step 3: Cross multiply
    3,399.45x = 5,090.94 × 1,729.18
  4. Step 4: Simplify right side
    3,399.45x = 8,803,157.99
  5. Step 5: Solve for x
    x = 8,803,157.99/3,399.45
  6. Step 6: Final answer
    x = 2,589.59

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1.5x scale

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.