Home / 2,997.26-4,137.63-1,990.56

Finding the Fourth Proportional to 2,997.26, 4,137.63 and 1,990.56

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Solution

The fourth proportional to 2,997.26, 4,137.63 and 1,990.56 is: 2,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.26 : 4,137.63 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    2,997.26/4,137.63 = 1,990.56/x
  3. Step 3: Cross multiply
    2,997.26x = 4,137.63 × 1,990.56
  4. Step 4: Simplify right side
    2,997.26x = 8,236,200.77
  5. Step 5: Solve for x
    x = 8,236,200.77/2,997.26
  6. Step 6: Final answer
    x = 2,747.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.