Home / 7,930.78-11,896.25-3,249.59

Finding the Fourth Proportional to 7,930.78, 11,896.25 and 3,249.59

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Solution

The fourth proportional to 7,930.78, 11,896.25 and 3,249.59 is: 4,874.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.78 : 11,896.25 = 3,249.59 : x
  2. Step 2: Convert to fraction form
    7,930.78/11,896.25 = 3,249.59/x
  3. Step 3: Cross multiply
    7,930.78x = 11,896.25 × 3,249.59
  4. Step 4: Simplify right side
    7,930.78x = 38,657,877.59
  5. Step 5: Solve for x
    x = 38,657,877.59/7,930.78
  6. Step 6: Final answer
    x = 4,874.41

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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.