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Finding the Fourth Proportional to 5,311.26, 7,975.80 and 3,995.01

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Solution

The fourth proportional to 5,311.26, 7,975.80 and 3,995.01 is: 5,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.26 : 7,975.80 = 3,995.01 : x
  2. Step 2: Convert to fraction form
    5,311.26/7,975.80 = 3,995.01/x
  3. Step 3: Cross multiply
    5,311.26x = 7,975.80 × 3,995.01
  4. Step 4: Simplify right side
    5,311.26x = 31,863,400.76
  5. Step 5: Solve for x
    x = 31,863,400.76/5,311.26
  6. Step 6: Final answer
    x = 5,999.22

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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.