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Finding the Fourth Proportional to 3,991.02, 5,989.03 and 1,526.05

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Solution

The fourth proportional to 3,991.02, 5,989.03 and 1,526.05 is: 2,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.02 : 5,989.03 = 1,526.05 : x
  2. Step 2: Convert to fraction form
    3,991.02/5,989.03 = 1,526.05/x
  3. Step 3: Cross multiply
    3,991.02x = 5,989.03 × 1,526.05
  4. Step 4: Simplify right side
    3,991.02x = 9,139,559.23
  5. Step 5: Solve for x
    x = 9,139,559.23/3,991.02
  6. Step 6: Final answer
    x = 2,290.03

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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.