Home / 7,961.78-11,942.93-3,579.25

Finding the Fourth Proportional to 7,961.78, 11,942.93 and 3,579.25

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Solution

The fourth proportional to 7,961.78, 11,942.93 and 3,579.25 is: 5,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.78 : 11,942.93 = 3,579.25 : x
  2. Step 2: Convert to fraction form
    7,961.78/11,942.93 = 3,579.25/x
  3. Step 3: Cross multiply
    7,961.78x = 11,942.93 × 3,579.25
  4. Step 4: Simplify right side
    7,961.78x = 42,746,733.69
  5. Step 5: Solve for x
    x = 42,746,733.69/7,961.78
  6. Step 6: Final answer
    x = 5,368.99

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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.