Home / 7,945.92-11,918.88-2,751.84

Finding the Fourth Proportional to 7,945.92, 11,918.88 and 2,751.84

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Solution

The fourth proportional to 7,945.92, 11,918.88 and 2,751.84 is: 4,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.92 : 11,918.88 = 2,751.84 : x
  2. Step 2: Convert to fraction form
    7,945.92/11,918.88 = 2,751.84/x
  3. Step 3: Cross multiply
    7,945.92x = 11,918.88 × 2,751.84
  4. Step 4: Simplify right side
    7,945.92x = 32,798,850.74
  5. Step 5: Solve for x
    x = 32,798,850.74/7,945.92
  6. Step 6: Final answer
    x = 4,127.76

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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.