Home / 7,789.08-11,683.44-3,890.64

Finding the Fourth Proportional to 7,789.08, 11,683.44 and 3,890.64

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Solution

The fourth proportional to 7,789.08, 11,683.44 and 3,890.64 is: 5,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.08 : 11,683.44 = 3,890.64 : x
  2. Step 2: Convert to fraction form
    7,789.08/11,683.44 = 3,890.64/x
  3. Step 3: Cross multiply
    7,789.08x = 11,683.44 × 3,890.64
  4. Step 4: Simplify right side
    7,789.08x = 45,456,059.00
  5. Step 5: Solve for x
    x = 45,456,059.00/7,789.08
  6. Step 6: Final answer
    x = 5,835.87

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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.