Home / 5,268.78-7,904.61-2,146.86

Finding the Fourth Proportional to 5,268.78, 7,904.61 and 2,146.86

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Solution

The fourth proportional to 5,268.78, 7,904.61 and 2,146.86 is: 3,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.78 : 7,904.61 = 2,146.86 : x
  2. Step 2: Convert to fraction form
    5,268.78/7,904.61 = 2,146.86/x
  3. Step 3: Cross multiply
    5,268.78x = 7,904.61 × 2,146.86
  4. Step 4: Simplify right side
    5,268.78x = 16,970,091.02
  5. Step 5: Solve for x
    x = 16,970,091.02/5,268.78
  6. Step 6: Final answer
    x = 3,220.88

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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.