Home / 7,945.84-11,918.85-2,750.50

Finding the Fourth Proportional to 7,945.84, 11,918.85 and 2,750.50

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Solution

The fourth proportional to 7,945.84, 11,918.85 and 2,750.50 is: 4,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.84 : 11,918.85 = 2,750.50 : x
  2. Step 2: Convert to fraction form
    7,945.84/11,918.85 = 2,750.50/x
  3. Step 3: Cross multiply
    7,945.84x = 11,918.85 × 2,750.50
  4. Step 4: Simplify right side
    7,945.84x = 32,782,796.93
  5. Step 5: Solve for x
    x = 32,782,796.93/7,945.84
  6. Step 6: Final answer
    x = 4,125.78

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1.5x scale

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.