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Finding the Fourth Proportional to 3,810.67, 5,716.46 and 1,344.98

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Solution

The fourth proportional to 3,810.67, 5,716.46 and 1,344.98 is: 2,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.67 : 5,716.46 = 1,344.98 : x
  2. Step 2: Convert to fraction form
    3,810.67/5,716.46 = 1,344.98/x
  3. Step 3: Cross multiply
    3,810.67x = 5,716.46 × 1,344.98
  4. Step 4: Simplify right side
    3,810.67x = 7,688,524.37
  5. Step 5: Solve for x
    x = 7,688,524.37/3,810.67
  6. Step 6: Final answer
    x = 2,017.63

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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.