Home / 7,976.22-11,962.89-2,783.58

Finding the Fourth Proportional to 7,976.22, 11,962.89 and 2,783.58

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Solution

The fourth proportional to 7,976.22, 11,962.89 and 2,783.58 is: 4,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.22 : 11,962.89 = 2,783.58 : x
  2. Step 2: Convert to fraction form
    7,976.22/11,962.89 = 2,783.58/x
  3. Step 3: Cross multiply
    7,976.22x = 11,962.89 × 2,783.58
  4. Step 4: Simplify right side
    7,976.22x = 33,299,661.35
  5. Step 5: Solve for x
    x = 33,299,661.35/7,976.22
  6. Step 6: Final answer
    x = 4,174.87

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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.