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Finding the Fourth Proportional to 6,410.73, 9,617.40 and 3,638.73

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Solution

The fourth proportional to 6,410.73, 9,617.40 and 3,638.73 is: 5,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,410.73 : 9,617.40 = 3,638.73 : x
  2. Step 2: Convert to fraction form
    6,410.73/9,617.40 = 3,638.73/x
  3. Step 3: Cross multiply
    6,410.73x = 9,617.40 × 3,638.73
  4. Step 4: Simplify right side
    6,410.73x = 34,995,121.90
  5. Step 5: Solve for x
    x = 34,995,121.90/6,410.73
  6. Step 6: Final answer
    x = 5,458.84

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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.