Home / 7,945.97-11,919.25-2,681.07

Finding the Fourth Proportional to 7,945.97, 11,919.25 and 2,681.07

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Solution

The fourth proportional to 7,945.97, 11,919.25 and 2,681.07 is: 4,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.97 : 11,919.25 = 2,681.07 : x
  2. Step 2: Convert to fraction form
    7,945.97/11,919.25 = 2,681.07/x
  3. Step 3: Cross multiply
    7,945.97x = 11,919.25 × 2,681.07
  4. Step 4: Simplify right side
    7,945.97x = 31,956,302.25
  5. Step 5: Solve for x
    x = 31,956,302.25/7,945.97
  6. Step 6: Final answer
    x = 4,021.70

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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.