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Finding the Fourth Proportional to 6,939, 10,408.50 and 2,322.12

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Solution

The fourth proportional to 6,939, 10,408.50 and 2,322.12 is: 3,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939 : 10,408.50 = 2,322.12 : x
  2. Step 2: Convert to fraction form
    6,939/10,408.50 = 2,322.12/x
  3. Step 3: Cross multiply
    6,939x = 10,408.50 × 2,322.12
  4. Step 4: Simplify right side
    6,939x = 24,169,786.02
  5. Step 5: Solve for x
    x = 24,169,786.02/6,939
  6. Step 6: Final answer
    x = 3,483.18

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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.