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Finding the Fourth Proportional to 6,991.66, 10,487.99 and 2,311.48

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Solution

The fourth proportional to 6,991.66, 10,487.99 and 2,311.48 is: 3,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.66 : 10,487.99 = 2,311.48 : x
  2. Step 2: Convert to fraction form
    6,991.66/10,487.99 = 2,311.48/x
  3. Step 3: Cross multiply
    6,991.66x = 10,487.99 × 2,311.48
  4. Step 4: Simplify right side
    6,991.66x = 24,242,779.13
  5. Step 5: Solve for x
    x = 24,242,779.13/6,991.66
  6. Step 6: Final answer
    x = 3,467.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.