Home / 3,188.42-4,785.54-1,629.54

Finding the Fourth Proportional to 3,188.42, 4,785.54 and 1,629.54

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Solution

The fourth proportional to 3,188.42, 4,785.54 and 1,629.54 is: 2,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.42 : 4,785.54 = 1,629.54 : x
  2. Step 2: Convert to fraction form
    3,188.42/4,785.54 = 1,629.54/x
  3. Step 3: Cross multiply
    3,188.42x = 4,785.54 × 1,629.54
  4. Step 4: Simplify right side
    3,188.42x = 7,798,228.85
  5. Step 5: Solve for x
    x = 7,798,228.85/3,188.42
  6. Step 6: Final answer
    x = 2,445.80

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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.