Home / 2,879.78-4,319.70-1,997.46

Finding the Fourth Proportional to 2,879.78, 4,319.70 and 1,997.46

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Solution

The fourth proportional to 2,879.78, 4,319.70 and 1,997.46 is: 2,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.78 : 4,319.70 = 1,997.46 : x
  2. Step 2: Convert to fraction form
    2,879.78/4,319.70 = 1,997.46/x
  3. Step 3: Cross multiply
    2,879.78x = 4,319.70 × 1,997.46
  4. Step 4: Simplify right side
    2,879.78x = 8,628,437.33
  5. Step 5: Solve for x
    x = 8,628,437.33/2,879.78
  6. Step 6: Final answer
    x = 2,996.22

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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.