Home / 2,081.19-3,120.24-984.27

Finding the Fourth Proportional to 2,081.19, 3,120.24 and 984.27

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Solution

The fourth proportional to 2,081.19, 3,120.24 and 984.27 is: 1,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.19 : 3,120.24 = 984.27 : x
  2. Step 2: Convert to fraction form
    2,081.19/3,120.24 = 984.27/x
  3. Step 3: Cross multiply
    2,081.19x = 3,120.24 × 984.27
  4. Step 4: Simplify right side
    2,081.19x = 3,071,156.47
  5. Step 5: Solve for x
    x = 3,071,156.47/2,081.19
  6. Step 6: Final answer
    x = 1,475.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.