Home / 2,676.70-4,013.06-1,288.73

Finding the Fourth Proportional to 2,676.70, 4,013.06 and 1,288.73

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Solution

The fourth proportional to 2,676.70, 4,013.06 and 1,288.73 is: 1,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.70 : 4,013.06 = 1,288.73 : x
  2. Step 2: Convert to fraction form
    2,676.70/4,013.06 = 1,288.73/x
  3. Step 3: Cross multiply
    2,676.70x = 4,013.06 × 1,288.73
  4. Step 4: Simplify right side
    2,676.70x = 5,171,750.81
  5. Step 5: Solve for x
    x = 5,171,750.81/2,676.70
  6. Step 6: Final answer
    x = 1,932.14

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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.