Home / 4,268.80-6,403.20-4,182.40

Finding the Fourth Proportional to 4,268.80, 6,403.20 and 4,182.40

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Solution

The fourth proportional to 4,268.80, 6,403.20 and 4,182.40 is: 6,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.80 : 6,403.20 = 4,182.40 : x
  2. Step 2: Convert to fraction form
    4,268.80/6,403.20 = 4,182.40/x
  3. Step 3: Cross multiply
    4,268.80x = 6,403.20 × 4,182.40
  4. Step 4: Simplify right side
    4,268.80x = 26,780,743.68
  5. Step 5: Solve for x
    x = 26,780,743.68/4,268.80
  6. Step 6: Final answer
    x = 6,273.60

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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.