Home / 3,268.27-4,905.17-1,420.86

Finding the Fourth Proportional to 3,268.27, 4,905.17 and 1,420.86

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Solution

The fourth proportional to 3,268.27, 4,905.17 and 1,420.86 is: 2,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.27 : 4,905.17 = 1,420.86 : x
  2. Step 2: Convert to fraction form
    3,268.27/4,905.17 = 1,420.86/x
  3. Step 3: Cross multiply
    3,268.27x = 4,905.17 × 1,420.86
  4. Step 4: Simplify right side
    3,268.27x = 6,969,559.85
  5. Step 5: Solve for x
    x = 6,969,559.85/3,268.27
  6. Step 6: Final answer
    x = 2,132.49

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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.