Home / 2,049.21-3,074.19-1,172.70

Finding the Fourth Proportional to 2,049.21, 3,074.19 and 1,172.70

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Solution

The fourth proportional to 2,049.21, 3,074.19 and 1,172.70 is: 1,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.21 : 3,074.19 = 1,172.70 : x
  2. Step 2: Convert to fraction form
    2,049.21/3,074.19 = 1,172.70/x
  3. Step 3: Cross multiply
    2,049.21x = 3,074.19 × 1,172.70
  4. Step 4: Simplify right side
    2,049.21x = 3,605,102.61
  5. Step 5: Solve for x
    x = 3,605,102.61/2,049.21
  6. Step 6: Final answer
    x = 1,759.26

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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.