Home / 4,090.40-6,121.20-3,744.80

Finding the Fourth Proportional to 4,090.40, 6,121.20 and 3,744.80

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Solution

The fourth proportional to 4,090.40, 6,121.20 and 3,744.80 is: 5,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.40 : 6,121.20 = 3,744.80 : x
  2. Step 2: Convert to fraction form
    4,090.40/6,121.20 = 3,744.80/x
  3. Step 3: Cross multiply
    4,090.40x = 6,121.20 × 3,744.80
  4. Step 4: Simplify right side
    4,090.40x = 22,922,669.76
  5. Step 5: Solve for x
    x = 22,922,669.76/4,090.40
  6. Step 6: Final answer
    x = 5,604.02

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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.