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Finding the Fourth Proportional to 3,987.97, 5,985.29 and 3,526.88

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Solution

The fourth proportional to 3,987.97, 5,985.29 and 3,526.88 is: 5,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.97 : 5,985.29 = 3,526.88 : x
  2. Step 2: Convert to fraction form
    3,987.97/5,985.29 = 3,526.88/x
  3. Step 3: Cross multiply
    3,987.97x = 5,985.29 × 3,526.88
  4. Step 4: Simplify right side
    3,987.97x = 21,109,378.49
  5. Step 5: Solve for x
    x = 21,109,378.49/3,987.97
  6. Step 6: Final answer
    x = 5,293.27

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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.