Home / 4,986.80-7,485.96-3,258.80

Finding the Fourth Proportional to 4,986.80, 7,485.96 and 3,258.80

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Solution

The fourth proportional to 4,986.80, 7,485.96 and 3,258.80 is: 4,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.80 : 7,485.96 = 3,258.80 : x
  2. Step 2: Convert to fraction form
    4,986.80/7,485.96 = 3,258.80/x
  3. Step 3: Cross multiply
    4,986.80x = 7,485.96 × 3,258.80
  4. Step 4: Simplify right side
    4,986.80x = 24,395,246.45
  5. Step 5: Solve for x
    x = 24,395,246.45/4,986.80
  6. Step 6: Final answer
    x = 4,891.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.