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Finding the Fourth Proportional to 8,807.05, 13,201.35 and 2,961.64

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Solution

The fourth proportional to 8,807.05, 13,201.35 and 2,961.64 is: 4,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.05 : 13,201.35 = 2,961.64 : x
  2. Step 2: Convert to fraction form
    8,807.05/13,201.35 = 2,961.64/x
  3. Step 3: Cross multiply
    8,807.05x = 13,201.35 × 2,961.64
  4. Step 4: Simplify right side
    8,807.05x = 39,097,646.21
  5. Step 5: Solve for x
    x = 39,097,646.21/8,807.05
  6. Step 6: Final answer
    x = 4,439.36

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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.