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Finding the Fourth Proportional to 7,914.08, 11,868.04 and 2,981.03

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Solution

The fourth proportional to 7,914.08, 11,868.04 and 2,981.03 is: 4,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.08 : 11,868.04 = 2,981.03 : x
  2. Step 2: Convert to fraction form
    7,914.08/11,868.04 = 2,981.03/x
  3. Step 3: Cross multiply
    7,914.08x = 11,868.04 × 2,981.03
  4. Step 4: Simplify right side
    7,914.08x = 35,378,969.43
  5. Step 5: Solve for x
    x = 35,378,969.43/7,914.08
  6. Step 6: Final answer
    x = 4,470.38

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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.