Home / 4,921.58-7,377.72-1,961.85

Finding the Fourth Proportional to 4,921.58, 7,377.72 and 1,961.85

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Solution

The fourth proportional to 4,921.58, 7,377.72 and 1,961.85 is: 2,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.58 : 7,377.72 = 1,961.85 : x
  2. Step 2: Convert to fraction form
    4,921.58/7,377.72 = 1,961.85/x
  3. Step 3: Cross multiply
    4,921.58x = 7,377.72 × 1,961.85
  4. Step 4: Simplify right side
    4,921.58x = 14,473,979.98
  5. Step 5: Solve for x
    x = 14,473,979.98/4,921.58
  6. Step 6: Final answer
    x = 2,940.92

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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.