Home / 4,921.74-7,379.87-1,996.63

Finding the Fourth Proportional to 4,921.74, 7,379.87 and 1,996.63

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Solution

The fourth proportional to 4,921.74, 7,379.87 and 1,996.63 is: 2,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.74 : 7,379.87 = 1,996.63 : x
  2. Step 2: Convert to fraction form
    4,921.74/7,379.87 = 1,996.63/x
  3. Step 3: Cross multiply
    4,921.74x = 7,379.87 × 1,996.63
  4. Step 4: Simplify right side
    4,921.74x = 14,734,869.84
  5. Step 5: Solve for x
    x = 14,734,869.84/4,921.74
  6. Step 6: Final answer
    x = 2,993.83

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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.