Home / 7,986.79-11,983.91-3,054.81

Finding the Fourth Proportional to 7,986.79, 11,983.91 and 3,054.81

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Solution

The fourth proportional to 7,986.79, 11,983.91 and 3,054.81 is: 4,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.79 : 11,983.91 = 3,054.81 : x
  2. Step 2: Convert to fraction form
    7,986.79/11,983.91 = 3,054.81/x
  3. Step 3: Cross multiply
    7,986.79x = 11,983.91 × 3,054.81
  4. Step 4: Simplify right side
    7,986.79x = 36,608,568.11
  5. Step 5: Solve for x
    x = 36,608,568.11/7,986.79
  6. Step 6: Final answer
    x = 4,583.64

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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.