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Finding the Fourth Proportional to 7,179.02, 10,768.50 and 1,914.02

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Solution

The fourth proportional to 7,179.02, 10,768.50 and 1,914.02 is: 2,871.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.02 : 10,768.50 = 1,914.02 : x
  2. Step 2: Convert to fraction form
    7,179.02/10,768.50 = 1,914.02/x
  3. Step 3: Cross multiply
    7,179.02x = 10,768.50 × 1,914.02
  4. Step 4: Simplify right side
    7,179.02x = 20,611,124.37
  5. Step 5: Solve for x
    x = 20,611,124.37/7,179.02
  6. Step 6: Final answer
    x = 2,871.02

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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.