Home / 7,739.21-11,608.80-2,808.83

Finding the Fourth Proportional to 7,739.21, 11,608.80 and 2,808.83

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Solution

The fourth proportional to 7,739.21, 11,608.80 and 2,808.83 is: 4,213.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.21 : 11,608.80 = 2,808.83 : x
  2. Step 2: Convert to fraction form
    7,739.21/11,608.80 = 2,808.83/x
  3. Step 3: Cross multiply
    7,739.21x = 11,608.80 × 2,808.83
  4. Step 4: Simplify right side
    7,739.21x = 32,607,145.70
  5. Step 5: Solve for x
    x = 32,607,145.70/7,739.21
  6. Step 6: Final answer
    x = 4,213.24

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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.