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Finding the Fourth Proportional to 4,689, 7,028.01 and 2,608.02

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Solution

The fourth proportional to 4,689, 7,028.01 and 2,608.02 is: 3,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689 : 7,028.01 = 2,608.02 : x
  2. Step 2: Convert to fraction form
    4,689/7,028.01 = 2,608.02/x
  3. Step 3: Cross multiply
    4,689x = 7,028.01 × 2,608.02
  4. Step 4: Simplify right side
    4,689x = 18,329,190.64
  5. Step 5: Solve for x
    x = 18,329,190.64/4,689
  6. Step 6: Final answer
    x = 3,908.98

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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.