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Finding the Fourth Proportional to 3,991.67, 5,986.12 and 1,527.19

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Solution

The fourth proportional to 3,991.67, 5,986.12 and 1,527.19 is: 2,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.67 : 5,986.12 = 1,527.19 : x
  2. Step 2: Convert to fraction form
    3,991.67/5,986.12 = 1,527.19/x
  3. Step 3: Cross multiply
    3,991.67x = 5,986.12 × 1,527.19
  4. Step 4: Simplify right side
    3,991.67x = 9,141,942.60
  5. Step 5: Solve for x
    x = 9,141,942.60/3,991.67
  6. Step 6: Final answer
    x = 2,290.26

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1.5x scale

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.