Home / 3,231.26-4,458.60-1,904.78

Finding the Fourth Proportional to 3,231.26, 4,458.60 and 1,904.78

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Solution

The fourth proportional to 3,231.26, 4,458.60 and 1,904.78 is: 2,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.26 : 4,458.60 = 1,904.78 : x
  2. Step 2: Convert to fraction form
    3,231.26/4,458.60 = 1,904.78/x
  3. Step 3: Cross multiply
    3,231.26x = 4,458.60 × 1,904.78
  4. Step 4: Simplify right side
    3,231.26x = 8,492,652.11
  5. Step 5: Solve for x
    x = 8,492,652.11/3,231.26
  6. Step 6: Final answer
    x = 2,628.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.