Home / 7,974.48-11,962.26-2,779.68

Finding the Fourth Proportional to 7,974.48, 11,962.26 and 2,779.68

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Solution

The fourth proportional to 7,974.48, 11,962.26 and 2,779.68 is: 4,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.48 : 11,962.26 = 2,779.68 : x
  2. Step 2: Convert to fraction form
    7,974.48/11,962.26 = 2,779.68/x
  3. Step 3: Cross multiply
    7,974.48x = 11,962.26 × 2,779.68
  4. Step 4: Simplify right side
    7,974.48x = 33,251,254.88
  5. Step 5: Solve for x
    x = 33,251,254.88/7,974.48
  6. Step 6: Final answer
    x = 4,169.71

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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.