Home / 7,728.48-11,589.98-2,796.84

Finding the Fourth Proportional to 7,728.48, 11,589.98 and 2,796.84

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Solution

The fourth proportional to 7,728.48, 11,589.98 and 2,796.84 is: 4,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.48 : 11,589.98 = 2,796.84 : x
  2. Step 2: Convert to fraction form
    7,728.48/11,589.98 = 2,796.84/x
  3. Step 3: Cross multiply
    7,728.48x = 11,589.98 × 2,796.84
  4. Step 4: Simplify right side
    7,728.48x = 32,415,305.68
  5. Step 5: Solve for x
    x = 32,415,305.68/7,728.48
  6. Step 6: Final answer
    x = 4,194.27

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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.