Home / 2,815.22-4,224.22-1,355.60

Finding the Fourth Proportional to 2,815.22, 4,224.22 and 1,355.60

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Solution

The fourth proportional to 2,815.22, 4,224.22 and 1,355.60 is: 2,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.22 : 4,224.22 = 1,355.60 : x
  2. Step 2: Convert to fraction form
    2,815.22/4,224.22 = 1,355.60/x
  3. Step 3: Cross multiply
    2,815.22x = 4,224.22 × 1,355.60
  4. Step 4: Simplify right side
    2,815.22x = 5,726,352.63
  5. Step 5: Solve for x
    x = 5,726,352.63/2,815.22
  6. Step 6: Final answer
    x = 2,034.07

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1.5x scale

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.