Home / 7,945.79-11,916.42-3,201.94

Finding the Fourth Proportional to 7,945.79, 11,916.42 and 3,201.94

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Solution

The fourth proportional to 7,945.79, 11,916.42 and 3,201.94 is: 4,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.79 : 11,916.42 = 3,201.94 : x
  2. Step 2: Convert to fraction form
    7,945.79/11,916.42 = 3,201.94/x
  3. Step 3: Cross multiply
    7,945.79x = 11,916.42 × 3,201.94
  4. Step 4: Simplify right side
    7,945.79x = 38,155,620.06
  5. Step 5: Solve for x
    x = 38,155,620.06/7,945.79
  6. Step 6: Final answer
    x = 4,801.99

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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.