Home / 4,481.50-6,182.78-2,779.21

Finding the Fourth Proportional to 4,481.50, 6,182.78 and 2,779.21

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Solution

The fourth proportional to 4,481.50, 6,182.78 and 2,779.21 is: 3,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.50 : 6,182.78 = 2,779.21 : x
  2. Step 2: Convert to fraction form
    4,481.50/6,182.78 = 2,779.21/x
  3. Step 3: Cross multiply
    4,481.50x = 6,182.78 × 2,779.21
  4. Step 4: Simplify right side
    4,481.50x = 17,183,253.47
  5. Step 5: Solve for x
    x = 17,183,253.47/4,481.50
  6. Step 6: Final answer
    x = 3,834.26

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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.