Home / 4,184.80-6,268.68-1,986.88

Finding the Fourth Proportional to 4,184.80, 6,268.68 and 1,986.88

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Solution

The fourth proportional to 4,184.80, 6,268.68 and 1,986.88 is: 2,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,184.80 : 6,268.68 = 1,986.88 : x
  2. Step 2: Convert to fraction form
    4,184.80/6,268.68 = 1,986.88/x
  3. Step 3: Cross multiply
    4,184.80x = 6,268.68 × 1,986.88
  4. Step 4: Simplify right side
    4,184.80x = 12,455,114.92
  5. Step 5: Solve for x
    x = 12,455,114.92/4,184.80
  6. Step 6: Final answer
    x = 2,976.27

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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.