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Finding the Fourth Proportional to 6,409.73, 9,620.07 and 2,905.07

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Solution

The fourth proportional to 6,409.73, 9,620.07 and 2,905.07 is: 4,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.73 : 9,620.07 = 2,905.07 : x
  2. Step 2: Convert to fraction form
    6,409.73/9,620.07 = 2,905.07/x
  3. Step 3: Cross multiply
    6,409.73x = 9,620.07 × 2,905.07
  4. Step 4: Simplify right side
    6,409.73x = 27,946,917.76
  5. Step 5: Solve for x
    x = 27,946,917.76/6,409.73
  6. Step 6: Final answer
    x = 4,360.08

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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.