Home / 2,738.80-4,075.30-2,729.55

Finding the Fourth Proportional to 2,738.80, 4,075.30 and 2,729.55

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Solution

The fourth proportional to 2,738.80, 4,075.30 and 2,729.55 is: 4,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.80 : 4,075.30 = 2,729.55 : x
  2. Step 2: Convert to fraction form
    2,738.80/4,075.30 = 2,729.55/x
  3. Step 3: Cross multiply
    2,738.80x = 4,075.30 × 2,729.55
  4. Step 4: Simplify right side
    2,738.80x = 11,123,735.12
  5. Step 5: Solve for x
    x = 11,123,735.12/2,738.80
  6. Step 6: Final answer
    x = 4,061.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.