Home / 5,231.80-7,847.70-1,336.15

Finding the Fourth Proportional to 5,231.80, 7,847.70 and 1,336.15

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Solution

The fourth proportional to 5,231.80, 7,847.70 and 1,336.15 is: 2,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.80 : 7,847.70 = 1,336.15 : x
  2. Step 2: Convert to fraction form
    5,231.80/7,847.70 = 1,336.15/x
  3. Step 3: Cross multiply
    5,231.80x = 7,847.70 × 1,336.15
  4. Step 4: Simplify right side
    5,231.80x = 10,485,704.36
  5. Step 5: Solve for x
    x = 10,485,704.36/5,231.80
  6. Step 6: Final answer
    x = 2,004.23

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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.