Home / 2,481.26-3,720.78-1,785

Finding the Fourth Proportional to 2,481.26, 3,720.78 and 1,785

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Solution

The fourth proportional to 2,481.26, 3,720.78 and 1,785 is: 2,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.26 : 3,720.78 = 1,785 : x
  2. Step 2: Convert to fraction form
    2,481.26/3,720.78 = 1,785/x
  3. Step 3: Cross multiply
    2,481.26x = 3,720.78 × 1,785
  4. Step 4: Simplify right side
    2,481.26x = 6,641,592.30
  5. Step 5: Solve for x
    x = 6,641,592.30/2,481.26
  6. Step 6: Final answer
    x = 2,676.70

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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.