Home / 7,939.94-11,913.94-3,779.17

Finding the Fourth Proportional to 7,939.94, 11,913.94 and 3,779.17

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Solution

The fourth proportional to 7,939.94, 11,913.94 and 3,779.17 is: 5,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.94 : 11,913.94 = 3,779.17 : x
  2. Step 2: Convert to fraction form
    7,939.94/11,913.94 = 3,779.17/x
  3. Step 3: Cross multiply
    7,939.94x = 11,913.94 × 3,779.17
  4. Step 4: Simplify right side
    7,939.94x = 45,024,825.33
  5. Step 5: Solve for x
    x = 45,024,825.33/7,939.94
  6. Step 6: Final answer
    x = 5,670.68

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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.