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Finding the Fourth Proportional to 3,987.84, 5,967.18 and 3,339.03

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Solution

The fourth proportional to 3,987.84, 5,967.18 and 3,339.03 is: 4,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.84 : 5,967.18 = 3,339.03 : x
  2. Step 2: Convert to fraction form
    3,987.84/5,967.18 = 3,339.03/x
  3. Step 3: Cross multiply
    3,987.84x = 5,967.18 × 3,339.03
  4. Step 4: Simplify right side
    3,987.84x = 19,924,593.04
  5. Step 5: Solve for x
    x = 19,924,593.04/3,987.84
  6. Step 6: Final answer
    x = 4,996.34

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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.