Home / 2,782.22-4,172.97-1,395.32

Finding the Fourth Proportional to 2,782.22, 4,172.97 and 1,395.32

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Solution

The fourth proportional to 2,782.22, 4,172.97 and 1,395.32 is: 2,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.22 : 4,172.97 = 1,395.32 : x
  2. Step 2: Convert to fraction form
    2,782.22/4,172.97 = 1,395.32/x
  3. Step 3: Cross multiply
    2,782.22x = 4,172.97 × 1,395.32
  4. Step 4: Simplify right side
    2,782.22x = 5,822,628.50
  5. Step 5: Solve for x
    x = 5,822,628.50/2,782.22
  6. Step 6: Final answer
    x = 2,092.80

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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.