Home / 2,923.38-4,384.26-1,998.78

Finding the Fourth Proportional to 2,923.38, 4,384.26 and 1,998.78

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Solution

The fourth proportional to 2,923.38, 4,384.26 and 1,998.78 is: 2,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.38 : 4,384.26 = 1,998.78 : x
  2. Step 2: Convert to fraction form
    2,923.38/4,384.26 = 1,998.78/x
  3. Step 3: Cross multiply
    2,923.38x = 4,384.26 × 1,998.78
  4. Step 4: Simplify right side
    2,923.38x = 8,763,171.20
  5. Step 5: Solve for x
    x = 8,763,171.20/2,923.38
  6. Step 6: Final answer
    x = 2,997.62

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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.