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Finding the Fourth Proportional to 3,043.78, 4,200.61 and 1,717

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Solution

The fourth proportional to 3,043.78, 4,200.61 and 1,717 is: 2,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,043.78 : 4,200.61 = 1,717 : x
  2. Step 2: Convert to fraction form
    3,043.78/4,200.61 = 1,717/x
  3. Step 3: Cross multiply
    3,043.78x = 4,200.61 × 1,717
  4. Step 4: Simplify right side
    3,043.78x = 7,212,447.37
  5. Step 5: Solve for x
    x = 7,212,447.37/3,043.78
  6. Step 6: Final answer
    x = 2,369.57

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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.