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Finding the Fourth Proportional to 6,608.19, 9,912.42 and 1,928.55

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Solution

The fourth proportional to 6,608.19, 9,912.42 and 1,928.55 is: 2,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.19 : 9,912.42 = 1,928.55 : x
  2. Step 2: Convert to fraction form
    6,608.19/9,912.42 = 1,928.55/x
  3. Step 3: Cross multiply
    6,608.19x = 9,912.42 × 1,928.55
  4. Step 4: Simplify right side
    6,608.19x = 19,116,597.59
  5. Step 5: Solve for x
    x = 19,116,597.59/6,608.19
  6. Step 6: Final answer
    x = 2,892.86

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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.