Home / 2,815.26-3,883.50-1,636.20

Finding the Fourth Proportional to 2,815.26, 3,883.50 and 1,636.20

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Solution

The fourth proportional to 2,815.26, 3,883.50 and 1,636.20 is: 2,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.26 : 3,883.50 = 1,636.20 : x
  2. Step 2: Convert to fraction form
    2,815.26/3,883.50 = 1,636.20/x
  3. Step 3: Cross multiply
    2,815.26x = 3,883.50 × 1,636.20
  4. Step 4: Simplify right side
    2,815.26x = 6,354,182.70
  5. Step 5: Solve for x
    x = 6,354,182.70/2,815.26
  6. Step 6: Final answer
    x = 2,257.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.