Home / 7,779.98-11,669.94-1,936.59

Finding the Fourth Proportional to 7,779.98, 11,669.94 and 1,936.59

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Solution

The fourth proportional to 7,779.98, 11,669.94 and 1,936.59 is: 2,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.98 : 11,669.94 = 1,936.59 : x
  2. Step 2: Convert to fraction form
    7,779.98/11,669.94 = 1,936.59/x
  3. Step 3: Cross multiply
    7,779.98x = 11,669.94 × 1,936.59
  4. Step 4: Simplify right side
    7,779.98x = 22,599,830.75
  5. Step 5: Solve for x
    x = 22,599,830.75/7,779.98
  6. Step 6: Final answer
    x = 2,904.87

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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.