Home / 7,945.17-11,917.76-2,751.05

Finding the Fourth Proportional to 7,945.17, 11,917.76 and 2,751.05

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Solution

The fourth proportional to 7,945.17, 11,917.76 and 2,751.05 is: 4,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.17 : 11,917.76 = 2,751.05 : x
  2. Step 2: Convert to fraction form
    7,945.17/11,917.76 = 2,751.05/x
  3. Step 3: Cross multiply
    7,945.17x = 11,917.76 × 2,751.05
  4. Step 4: Simplify right side
    7,945.17x = 32,786,353.65
  5. Step 5: Solve for x
    x = 32,786,353.65/7,945.17
  6. Step 6: Final answer
    x = 4,126.58

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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.