Home / 7,982.28-11,973.48-2,788.16

Finding the Fourth Proportional to 7,982.28, 11,973.48 and 2,788.16

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Solution

The fourth proportional to 7,982.28, 11,973.48 and 2,788.16 is: 4,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.28 : 11,973.48 = 2,788.16 : x
  2. Step 2: Convert to fraction form
    7,982.28/11,973.48 = 2,788.16/x
  3. Step 3: Cross multiply
    7,982.28x = 11,973.48 × 2,788.16
  4. Step 4: Simplify right side
    7,982.28x = 33,383,978.00
  5. Step 5: Solve for x
    x = 33,383,978.00/7,982.28
  6. Step 6: Final answer
    x = 4,182.26

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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.