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Finding the Fourth Proportional to 6,659, 9,988.50 and 1,795

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Solution

The fourth proportional to 6,659, 9,988.50 and 1,795 is: 2,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659 : 9,988.50 = 1,795 : x
  2. Step 2: Convert to fraction form
    6,659/9,988.50 = 1,795/x
  3. Step 3: Cross multiply
    6,659x = 9,988.50 × 1,795
  4. Step 4: Simplify right side
    6,659x = 17,929,357.50
  5. Step 5: Solve for x
    x = 17,929,357.50/6,659
  6. Step 6: Final answer
    x = 2,692.50

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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.