Home / 3,881.22-5,351.18-3,172.28

Finding the Fourth Proportional to 3,881.22, 5,351.18 and 3,172.28

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Solution

The fourth proportional to 3,881.22, 5,351.18 and 3,172.28 is: 4,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.22 : 5,351.18 = 3,172.28 : x
  2. Step 2: Convert to fraction form
    3,881.22/5,351.18 = 3,172.28/x
  3. Step 3: Cross multiply
    3,881.22x = 5,351.18 × 3,172.28
  4. Step 4: Simplify right side
    3,881.22x = 16,975,398.67
  5. Step 5: Solve for x
    x = 16,975,398.67/3,881.22
  6. Step 6: Final answer
    x = 4,373.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.