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Finding the Fourth Proportional to 3,510.94, 4,845.03 and 1,939

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Solution

The fourth proportional to 3,510.94, 4,845.03 and 1,939 is: 2,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.94 : 4,845.03 = 1,939 : x
  2. Step 2: Convert to fraction form
    3,510.94/4,845.03 = 1,939/x
  3. Step 3: Cross multiply
    3,510.94x = 4,845.03 × 1,939
  4. Step 4: Simplify right side
    3,510.94x = 9,394,518.02
  5. Step 5: Solve for x
    x = 9,394,518.02/3,510.94
  6. Step 6: Final answer
    x = 2,675.78

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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.