Home / 4,129.74-6,195.26-1,355.78

Finding the Fourth Proportional to 4,129.74, 6,195.26 and 1,355.78

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Solution

The fourth proportional to 4,129.74, 6,195.26 and 1,355.78 is: 2,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.74 : 6,195.26 = 1,355.78 : x
  2. Step 2: Convert to fraction form
    4,129.74/6,195.26 = 1,355.78/x
  3. Step 3: Cross multiply
    4,129.74x = 6,195.26 × 1,355.78
  4. Step 4: Simplify right side
    4,129.74x = 8,399,409.60
  5. Step 5: Solve for x
    x = 8,399,409.60/4,129.74
  6. Step 6: Final answer
    x = 2,033.88

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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.