Home / 2,550.90-3,823.16-1,380.90

Finding the Fourth Proportional to 2,550.90, 3,823.16 and 1,380.90

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Solution

The fourth proportional to 2,550.90, 3,823.16 and 1,380.90 is: 2,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.90 : 3,823.16 = 1,380.90 : x
  2. Step 2: Convert to fraction form
    2,550.90/3,823.16 = 1,380.90/x
  3. Step 3: Cross multiply
    2,550.90x = 3,823.16 × 1,380.90
  4. Step 4: Simplify right side
    2,550.90x = 5,279,394.74
  5. Step 5: Solve for x
    x = 5,279,394.74/2,550.90
  6. Step 6: Final answer
    x = 2,069.62

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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.