Home / 7,739.70-11,609.34-1,896.30

Finding the Fourth Proportional to 7,739.70, 11,609.34 and 1,896.30

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Solution

The fourth proportional to 7,739.70, 11,609.34 and 1,896.30 is: 2,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.70 : 11,609.34 = 1,896.30 : x
  2. Step 2: Convert to fraction form
    7,739.70/11,609.34 = 1,896.30/x
  3. Step 3: Cross multiply
    7,739.70x = 11,609.34 × 1,896.30
  4. Step 4: Simplify right side
    7,739.70x = 22,014,791.44
  5. Step 5: Solve for x
    x = 22,014,791.44/7,739.70
  6. Step 6: Final answer
    x = 2,844.40

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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.