Home / 7,945.26-11,916.86-2,102.32

Finding the Fourth Proportional to 7,945.26, 11,916.86 and 2,102.32

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Solution

The fourth proportional to 7,945.26, 11,916.86 and 2,102.32 is: 3,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.26 : 11,916.86 = 2,102.32 : x
  2. Step 2: Convert to fraction form
    7,945.26/11,916.86 = 2,102.32/x
  3. Step 3: Cross multiply
    7,945.26x = 11,916.86 × 2,102.32
  4. Step 4: Simplify right side
    7,945.26x = 25,053,053.12
  5. Step 5: Solve for x
    x = 25,053,053.12/7,945.26
  6. Step 6: Final answer
    x = 3,153.21

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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.