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Finding the Fourth Proportional to 6,689, 10,033.50 and 1,825

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Solution

The fourth proportional to 6,689, 10,033.50 and 1,825 is: 2,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689 : 10,033.50 = 1,825 : x
  2. Step 2: Convert to fraction form
    6,689/10,033.50 = 1,825/x
  3. Step 3: Cross multiply
    6,689x = 10,033.50 × 1,825
  4. Step 4: Simplify right side
    6,689x = 18,311,137.50
  5. Step 5: Solve for x
    x = 18,311,137.50/6,689
  6. Step 6: Final answer
    x = 2,737.50

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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.