Home / 2,738.40-3,777.44-1,618.80

Finding the Fourth Proportional to 2,738.40, 3,777.44 and 1,618.80

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Solution

The fourth proportional to 2,738.40, 3,777.44 and 1,618.80 is: 2,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.40 : 3,777.44 = 1,618.80 : x
  2. Step 2: Convert to fraction form
    2,738.40/3,777.44 = 1,618.80/x
  3. Step 3: Cross multiply
    2,738.40x = 3,777.44 × 1,618.80
  4. Step 4: Simplify right side
    2,738.40x = 6,114,919.87
  5. Step 5: Solve for x
    x = 6,114,919.87/2,738.40
  6. Step 6: Final answer
    x = 2,233.03

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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.