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Finding the Fourth Proportional to 3,881.58, 5,828.85 and 3,851.34

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Solution

The fourth proportional to 3,881.58, 5,828.85 and 3,851.34 is: 5,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.58 : 5,828.85 = 3,851.34 : x
  2. Step 2: Convert to fraction form
    3,881.58/5,828.85 = 3,851.34/x
  3. Step 3: Cross multiply
    3,881.58x = 5,828.85 × 3,851.34
  4. Step 4: Simplify right side
    3,881.58x = 22,448,883.16
  5. Step 5: Solve for x
    x = 22,448,883.16/3,881.58
  6. Step 6: Final answer
    x = 5,783.44

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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.