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Finding the Fourth Proportional to 2,770.02, 3,822 and 1,762.02

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Solution

The fourth proportional to 2,770.02, 3,822 and 1,762.02 is: 2,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.02 : 3,822 = 1,762.02 : x
  2. Step 2: Convert to fraction form
    2,770.02/3,822 = 1,762.02/x
  3. Step 3: Cross multiply
    2,770.02x = 3,822 × 1,762.02
  4. Step 4: Simplify right side
    2,770.02x = 6,734,440.44
  5. Step 5: Solve for x
    x = 6,734,440.44/2,770.02
  6. Step 6: Final answer
    x = 2,431.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.