Home / 2,274.44-3,137.86-1,389.80

Finding the Fourth Proportional to 2,274.44, 3,137.86 and 1,389.80

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Solution

The fourth proportional to 2,274.44, 3,137.86 and 1,389.80 is: 1,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.44 : 3,137.86 = 1,389.80 : x
  2. Step 2: Convert to fraction form
    2,274.44/3,137.86 = 1,389.80/x
  3. Step 3: Cross multiply
    2,274.44x = 3,137.86 × 1,389.80
  4. Step 4: Simplify right side
    2,274.44x = 4,360,997.83
  5. Step 5: Solve for x
    x = 4,360,997.83/2,274.44
  6. Step 6: Final answer
    x = 1,917.39

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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.