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Finding the Fourth Proportional to 6,419, 9,628.26 and 1,610.44

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Solution

The fourth proportional to 6,419, 9,628.26 and 1,610.44 is: 2,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419 : 9,628.26 = 1,610.44 : x
  2. Step 2: Convert to fraction form
    6,419/9,628.26 = 1,610.44/x
  3. Step 3: Cross multiply
    6,419x = 9,628.26 × 1,610.44
  4. Step 4: Simplify right side
    6,419x = 15,505,735.03
  5. Step 5: Solve for x
    x = 15,505,735.03/6,419
  6. Step 6: Final answer
    x = 2,415.60

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1.5x scale

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.