Home / 5,311.22-7,963.31-2,971.47

Finding the Fourth Proportional to 5,311.22, 7,963.31 and 2,971.47

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Solution

The fourth proportional to 5,311.22, 7,963.31 and 2,971.47 is: 4,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.22 : 7,963.31 = 2,971.47 : x
  2. Step 2: Convert to fraction form
    5,311.22/7,963.31 = 2,971.47/x
  3. Step 3: Cross multiply
    5,311.22x = 7,963.31 × 2,971.47
  4. Step 4: Simplify right side
    5,311.22x = 23,662,729.26
  5. Step 5: Solve for x
    x = 23,662,729.26/5,311.22
  6. Step 6: Final answer
    x = 4,455.23

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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.