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Finding the Fourth Proportional to 3,991.44, 5,985.60 and 1,525.44

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Solution

The fourth proportional to 3,991.44, 5,985.60 and 1,525.44 is: 2,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.44 : 5,985.60 = 1,525.44 : x
  2. Step 2: Convert to fraction form
    3,991.44/5,985.60 = 1,525.44/x
  3. Step 3: Cross multiply
    3,991.44x = 5,985.60 × 1,525.44
  4. Step 4: Simplify right side
    3,991.44x = 9,130,673.66
  5. Step 5: Solve for x
    x = 9,130,673.66/3,991.44
  6. Step 6: Final answer
    x = 2,287.56

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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.