Home / 3,485.21-4,808.93-1,993.60

Finding the Fourth Proportional to 3,485.21, 4,808.93 and 1,993.60

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Solution

The fourth proportional to 3,485.21, 4,808.93 and 1,993.60 is: 2,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.21 : 4,808.93 = 1,993.60 : x
  2. Step 2: Convert to fraction form
    3,485.21/4,808.93 = 1,993.60/x
  3. Step 3: Cross multiply
    3,485.21x = 4,808.93 × 1,993.60
  4. Step 4: Simplify right side
    3,485.21x = 9,587,060.86
  5. Step 5: Solve for x
    x = 9,587,060.86/3,485.21
  6. Step 6: Final answer
    x = 2,750.78

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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.