Home / 2,149.75-3,216.56-1,269.02

Finding the Fourth Proportional to 2,149.75, 3,216.56 and 1,269.02

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Solution

The fourth proportional to 2,149.75, 3,216.56 and 1,269.02 is: 1,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.75 : 3,216.56 = 1,269.02 : x
  2. Step 2: Convert to fraction form
    2,149.75/3,216.56 = 1,269.02/x
  3. Step 3: Cross multiply
    2,149.75x = 3,216.56 × 1,269.02
  4. Step 4: Simplify right side
    2,149.75x = 4,081,858.60
  5. Step 5: Solve for x
    x = 4,081,858.60/2,149.75
  6. Step 6: Final answer
    x = 1,898.76

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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.