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Finding the Fourth Proportional to 6,717, 10,075.68 and 2,100

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Solution

The fourth proportional to 6,717, 10,075.68 and 2,100 is: 3,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717 : 10,075.68 = 2,100 : x
  2. Step 2: Convert to fraction form
    6,717/10,075.68 = 2,100/x
  3. Step 3: Cross multiply
    6,717x = 10,075.68 × 2,100
  4. Step 4: Simplify right side
    6,717x = 21,158,928
  5. Step 5: Solve for x
    x = 21,158,928/6,717
  6. Step 6: Final answer
    x = 3,150.06

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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.