Home / 7,739.12-11,610.28-3,786.48

Finding the Fourth Proportional to 7,739.12, 11,610.28 and 3,786.48

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Solution

The fourth proportional to 7,739.12, 11,610.28 and 3,786.48 is: 5,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.12 : 11,610.28 = 3,786.48 : x
  2. Step 2: Convert to fraction form
    7,739.12/11,610.28 = 3,786.48/x
  3. Step 3: Cross multiply
    7,739.12x = 11,610.28 × 3,786.48
  4. Step 4: Simplify right side
    7,739.12x = 43,962,093.01
  5. Step 5: Solve for x
    x = 43,962,093.01/7,739.12
  6. Step 6: Final answer
    x = 5,680.50

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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.