Home / 7,945.23-11,916.91-2,102.29

Finding the Fourth Proportional to 7,945.23, 11,916.91 and 2,102.29

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Solution

The fourth proportional to 7,945.23, 11,916.91 and 2,102.29 is: 3,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.23 : 11,916.91 = 2,102.29 : x
  2. Step 2: Convert to fraction form
    7,945.23/11,916.91 = 2,102.29/x
  3. Step 3: Cross multiply
    7,945.23x = 11,916.91 × 2,102.29
  4. Step 4: Simplify right side
    7,945.23x = 25,052,800.72
  5. Step 5: Solve for x
    x = 25,052,800.72/7,945.23
  6. Step 6: Final answer
    x = 3,153.19

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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.