Home / 4,717.56-7,077.96-2,121.60

Finding the Fourth Proportional to 4,717.56, 7,077.96 and 2,121.60

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Solution

The fourth proportional to 4,717.56, 7,077.96 and 2,121.60 is: 3,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,717.56 : 7,077.96 = 2,121.60 : x
  2. Step 2: Convert to fraction form
    4,717.56/7,077.96 = 2,121.60/x
  3. Step 3: Cross multiply
    4,717.56x = 7,077.96 × 2,121.60
  4. Step 4: Simplify right side
    4,717.56x = 15,016,599.94
  5. Step 5: Solve for x
    x = 15,016,599.94/4,717.56
  6. Step 6: Final answer
    x = 3,183.13

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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.