Home / 7,779.24-11,668.70-1,935.90

Finding the Fourth Proportional to 7,779.24, 11,668.70 and 1,935.90

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Solution

The fourth proportional to 7,779.24, 11,668.70 and 1,935.90 is: 2,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.24 : 11,668.70 = 1,935.90 : x
  2. Step 2: Convert to fraction form
    7,779.24/11,668.70 = 1,935.90/x
  3. Step 3: Cross multiply
    7,779.24x = 11,668.70 × 1,935.90
  4. Step 4: Simplify right side
    7,779.24x = 22,589,436.33
  5. Step 5: Solve for x
    x = 22,589,436.33/7,779.24
  6. Step 6: Final answer
    x = 2,903.81

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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.