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Finding the Fourth Proportional to 6,960, 10,440.15 and 3,260.19

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Solution

The fourth proportional to 6,960, 10,440.15 and 3,260.19 is: 4,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960 : 10,440.15 = 3,260.19 : x
  2. Step 2: Convert to fraction form
    6,960/10,440.15 = 3,260.19/x
  3. Step 3: Cross multiply
    6,960x = 10,440.15 × 3,260.19
  4. Step 4: Simplify right side
    6,960x = 34,036,872.63
  5. Step 5: Solve for x
    x = 34,036,872.63/6,960
  6. Step 6: Final answer
    x = 4,890.36

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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.