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Finding the Fourth Proportional to 8,964.28, 13,450.29 and 3,419.29

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Solution

The fourth proportional to 8,964.28, 13,450.29 and 3,419.29 is: 5,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.28 : 13,450.29 = 3,419.29 : x
  2. Step 2: Convert to fraction form
    8,964.28/13,450.29 = 3,419.29/x
  3. Step 3: Cross multiply
    8,964.28x = 13,450.29 × 3,419.29
  4. Step 4: Simplify right side
    8,964.28x = 45,990,442.09
  5. Step 5: Solve for x
    x = 45,990,442.09/8,964.28
  6. Step 6: Final answer
    x = 5,130.41

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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.