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Finding the Fourth Proportional to 6,326, 9,489 and 1,709

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Solution

The fourth proportional to 6,326, 9,489 and 1,709 is: 2,563.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326 : 9,489 = 1,709 : x
  2. Step 2: Convert to fraction form
    6,326/9,489 = 1,709/x
  3. Step 3: Cross multiply
    6,326x = 9,489 × 1,709
  4. Step 4: Simplify right side
    6,326x = 16,216,701
  5. Step 5: Solve for x
    x = 16,216,701/6,326
  6. Step 6: Final answer
    x = 2,563.50

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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.