Home / 7,972.26-11,957.46-2,129.33

Finding the Fourth Proportional to 7,972.26, 11,957.46 and 2,129.33

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Solution

The fourth proportional to 7,972.26, 11,957.46 and 2,129.33 is: 3,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.26 : 11,957.46 = 2,129.33 : x
  2. Step 2: Convert to fraction form
    7,972.26/11,957.46 = 2,129.33/x
  3. Step 3: Cross multiply
    7,972.26x = 11,957.46 × 2,129.33
  4. Step 4: Simplify right side
    7,972.26x = 25,461,318.51
  5. Step 5: Solve for x
    x = 25,461,318.51/7,972.26
  6. Step 6: Final answer
    x = 3,193.74

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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.