Home / 7,945.93-11,919.48-2,102.50

Finding the Fourth Proportional to 7,945.93, 11,919.48 and 2,102.50

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Solution

The fourth proportional to 7,945.93, 11,919.48 and 2,102.50 is: 3,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.93 : 11,919.48 = 2,102.50 : x
  2. Step 2: Convert to fraction form
    7,945.93/11,919.48 = 2,102.50/x
  3. Step 3: Cross multiply
    7,945.93x = 11,919.48 × 2,102.50
  4. Step 4: Simplify right side
    7,945.93x = 25,060,706.70
  5. Step 5: Solve for x
    x = 25,060,706.70/7,945.93
  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.