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Finding the Fourth Proportional to 3,991.56, 5,987.16 and 1,527.54

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Solution

The fourth proportional to 3,991.56, 5,987.16 and 1,527.54 is: 2,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.56 : 5,987.16 = 1,527.54 : x
  2. Step 2: Convert to fraction form
    3,991.56/5,987.16 = 1,527.54/x
  3. Step 3: Cross multiply
    3,991.56x = 5,987.16 × 1,527.54
  4. Step 4: Simplify right side
    3,991.56x = 9,145,626.39
  5. Step 5: Solve for x
    x = 9,145,626.39/3,991.56
  6. Step 6: Final answer
    x = 2,291.24

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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.