Home / 2,812.22-4,219.72-1,352.60

Finding the Fourth Proportional to 2,812.22, 4,219.72 and 1,352.60

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Solution

The fourth proportional to 2,812.22, 4,219.72 and 1,352.60 is: 2,029.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.22 : 4,219.72 = 1,352.60 : x
  2. Step 2: Convert to fraction form
    2,812.22/4,219.72 = 1,352.60/x
  3. Step 3: Cross multiply
    2,812.22x = 4,219.72 × 1,352.60
  4. Step 4: Simplify right side
    2,812.22x = 5,707,593.27
  5. Step 5: Solve for x
    x = 5,707,593.27/2,812.22
  6. Step 6: Final answer
    x = 2,029.57

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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.