Home / 2,253.26-3,109.40-1,296.09

Finding the Fourth Proportional to 2,253.26, 3,109.40 and 1,296.09

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Solution

The fourth proportional to 2,253.26, 3,109.40 and 1,296.09 is: 1,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.26 : 3,109.40 = 1,296.09 : x
  2. Step 2: Convert to fraction form
    2,253.26/3,109.40 = 1,296.09/x
  3. Step 3: Cross multiply
    2,253.26x = 3,109.40 × 1,296.09
  4. Step 4: Simplify right side
    2,253.26x = 4,030,078.44
  5. Step 5: Solve for x
    x = 4,030,078.44/2,253.26
  6. Step 6: Final answer
    x = 1,788.56

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1.5x scale

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.