Home / 7,945.83-11,917.40-2,103.03

Finding the Fourth Proportional to 7,945.83, 11,917.40 and 2,103.03

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Solution

The fourth proportional to 7,945.83, 11,917.40 and 2,103.03 is: 3,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.83 : 11,917.40 = 2,103.03 : x
  2. Step 2: Convert to fraction form
    7,945.83/11,917.40 = 2,103.03/x
  3. Step 3: Cross multiply
    7,945.83x = 11,917.40 × 2,103.03
  4. Step 4: Simplify right side
    7,945.83x = 25,062,639.21
  5. Step 5: Solve for x
    x = 25,062,639.21/7,945.83
  6. Step 6: Final answer
    x = 3,154.19

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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.