Home / 7,779.72-11,667.97-2,231.83

Finding the Fourth Proportional to 7,779.72, 11,667.97 and 2,231.83

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Solution

The fourth proportional to 7,779.72, 11,667.97 and 2,231.83 is: 3,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.72 : 11,667.97 = 2,231.83 : x
  2. Step 2: Convert to fraction form
    7,779.72/11,667.97 = 2,231.83/x
  3. Step 3: Cross multiply
    7,779.72x = 11,667.97 × 2,231.83
  4. Step 4: Simplify right side
    7,779.72x = 26,040,855.99
  5. Step 5: Solve for x
    x = 26,040,855.99/7,779.72
  6. Step 6: Final answer
    x = 3,347.28

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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.