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Finding the Fourth Proportional to 6,609.24, 9,912.90 and 1,928.00

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Solution

The fourth proportional to 6,609.24, 9,912.90 and 1,928.00 is: 2,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.24 : 9,912.90 = 1,928.00 : x
  2. Step 2: Convert to fraction form
    6,609.24/9,912.90 = 1,928.00/x
  3. Step 3: Cross multiply
    6,609.24x = 9,912.90 × 1,928.00
  4. Step 4: Simplify right side
    6,609.24x = 19,112,021.64
  5. Step 5: Solve for x
    x = 19,112,021.64/6,609.24
  6. Step 6: Final answer
    x = 2,891.71

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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.