Home / 7,975.44-11,962.08-2,780.64

Finding the Fourth Proportional to 7,975.44, 11,962.08 and 2,780.64

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Solution

The fourth proportional to 7,975.44, 11,962.08 and 2,780.64 is: 4,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.44 : 11,962.08 = 2,780.64 : x
  2. Step 2: Convert to fraction form
    7,975.44/11,962.08 = 2,780.64/x
  3. Step 3: Cross multiply
    7,975.44x = 11,962.08 × 2,780.64
  4. Step 4: Simplify right side
    7,975.44x = 33,262,238.13
  5. Step 5: Solve for x
    x = 33,262,238.13/7,975.44
  6. Step 6: Final answer
    x = 4,170.58

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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.