Home / 7,945.77-11,919.60-2,102.43

Finding the Fourth Proportional to 7,945.77, 11,919.60 and 2,102.43

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Solution

The fourth proportional to 7,945.77, 11,919.60 and 2,102.43 is: 3,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.77 : 11,919.60 = 2,102.43 : x
  2. Step 2: Convert to fraction form
    7,945.77/11,919.60 = 2,102.43/x
  3. Step 3: Cross multiply
    7,945.77x = 11,919.60 × 2,102.43
  4. Step 4: Simplify right side
    7,945.77x = 25,060,124.63
  5. Step 5: Solve for x
    x = 25,060,124.63/7,945.77
  6. Step 6: Final answer
    x = 3,153.90

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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.