Home / 2,550.23-3,520.64-1,981.80

Finding the Fourth Proportional to 2,550.23, 3,520.64 and 1,981.80

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Solution

The fourth proportional to 2,550.23, 3,520.64 and 1,981.80 is: 2,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.23 : 3,520.64 = 1,981.80 : x
  2. Step 2: Convert to fraction form
    2,550.23/3,520.64 = 1,981.80/x
  3. Step 3: Cross multiply
    2,550.23x = 3,520.64 × 1,981.80
  4. Step 4: Simplify right side
    2,550.23x = 6,977,194.44
  5. Step 5: Solve for x
    x = 6,977,194.44/2,550.23
  6. Step 6: Final answer
    x = 2,735.91

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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.