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Finding the Fourth Proportional to 3,671, 5,065.93 and 1,992.41

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Solution

The fourth proportional to 3,671, 5,065.93 and 1,992.41 is: 2,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671 : 5,065.93 = 1,992.41 : x
  2. Step 2: Convert to fraction form
    3,671/5,065.93 = 1,992.41/x
  3. Step 3: Cross multiply
    3,671x = 5,065.93 × 1,992.41
  4. Step 4: Simplify right side
    3,671x = 10,093,409.59
  5. Step 5: Solve for x
    x = 10,093,409.59/3,671
  6. Step 6: Final answer
    x = 2,749.50

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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.