Home / 3,485.78-4,810.46-1,993.84

Finding the Fourth Proportional to 3,485.78, 4,810.46 and 1,993.84

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Solution

The fourth proportional to 3,485.78, 4,810.46 and 1,993.84 is: 2,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.78 : 4,810.46 = 1,993.84 : x
  2. Step 2: Convert to fraction form
    3,485.78/4,810.46 = 1,993.84/x
  3. Step 3: Cross multiply
    3,485.78x = 4,810.46 × 1,993.84
  4. Step 4: Simplify right side
    3,485.78x = 9,591,287.57
  5. Step 5: Solve for x
    x = 9,591,287.57/3,485.78
  6. Step 6: Final answer
    x = 2,751.55

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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.