Home / 2,180.56-3,009.24-1,296.44

Finding the Fourth Proportional to 2,180.56, 3,009.24 and 1,296.44

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Solution

The fourth proportional to 2,180.56, 3,009.24 and 1,296.44 is: 1,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.56 : 3,009.24 = 1,296.44 : x
  2. Step 2: Convert to fraction form
    2,180.56/3,009.24 = 1,296.44/x
  3. Step 3: Cross multiply
    2,180.56x = 3,009.24 × 1,296.44
  4. Step 4: Simplify right side
    2,180.56x = 3,901,299.11
  5. Step 5: Solve for x
    x = 3,901,299.11/2,180.56
  6. Step 6: Final answer
    x = 1,789.13

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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.