Home / 3,485.21-4,809.88-1,993.42

Finding the Fourth Proportional to 3,485.21, 4,809.88 and 1,993.42

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Solution

The fourth proportional to 3,485.21, 4,809.88 and 1,993.42 is: 2,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.21 : 4,809.88 = 1,993.42 : x
  2. Step 2: Convert to fraction form
    3,485.21/4,809.88 = 1,993.42/x
  3. Step 3: Cross multiply
    3,485.21x = 4,809.88 × 1,993.42
  4. Step 4: Simplify right side
    3,485.21x = 9,588,093.98
  5. Step 5: Solve for x
    x = 9,588,093.98/3,485.21
  6. Step 6: Final answer
    x = 2,751.08

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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.