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Finding the Fourth Proportional to 6,505.15, 8,977.09 and 3,520.96

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Solution

The fourth proportional to 6,505.15, 8,977.09 and 3,520.96 is: 4,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.15 : 8,977.09 = 3,520.96 : x
  2. Step 2: Convert to fraction form
    6,505.15/8,977.09 = 3,520.96/x
  3. Step 3: Cross multiply
    6,505.15x = 8,977.09 × 3,520.96
  4. Step 4: Simplify right side
    6,505.15x = 31,607,943.56
  5. Step 5: Solve for x
    x = 31,607,943.56/6,505.15
  6. Step 6: Final answer
    x = 4,858.91

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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.