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Finding the Fourth Proportional to 3,987.23, 5,985.09 and 3,527.96

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Solution

The fourth proportional to 3,987.23, 5,985.09 and 3,527.96 is: 5,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.23 : 5,985.09 = 3,527.96 : x
  2. Step 2: Convert to fraction form
    3,987.23/5,985.09 = 3,527.96/x
  3. Step 3: Cross multiply
    3,987.23x = 5,985.09 × 3,527.96
  4. Step 4: Simplify right side
    3,987.23x = 21,115,128.19
  5. Step 5: Solve for x
    x = 21,115,128.19/3,987.23
  6. Step 6: Final answer
    x = 5,295.70

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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.