Home / 4,744.21-7,120.62-2,405.85

Finding the Fourth Proportional to 4,744.21, 7,120.62 and 2,405.85

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Solution

The fourth proportional to 4,744.21, 7,120.62 and 2,405.85 is: 3,610.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,744.21 : 7,120.62 = 2,405.85 : x
  2. Step 2: Convert to fraction form
    4,744.21/7,120.62 = 2,405.85/x
  3. Step 3: Cross multiply
    4,744.21x = 7,120.62 × 2,405.85
  4. Step 4: Simplify right side
    4,744.21x = 17,131,143.63
  5. Step 5: Solve for x
    x = 17,131,143.63/4,744.21
  6. Step 6: Final answer
    x = 3,610.96

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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.