Home / 2,763.10-3,811.32-1,768.02

Finding the Fourth Proportional to 2,763.10, 3,811.32 and 1,768.02

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Solution

The fourth proportional to 2,763.10, 3,811.32 and 1,768.02 is: 2,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.10 : 3,811.32 = 1,768.02 : x
  2. Step 2: Convert to fraction form
    2,763.10/3,811.32 = 1,768.02/x
  3. Step 3: Cross multiply
    2,763.10x = 3,811.32 × 1,768.02
  4. Step 4: Simplify right side
    2,763.10x = 6,738,489.99
  5. Step 5: Solve for x
    x = 6,738,489.99/2,763.10
  6. Step 6: Final answer
    x = 2,438.74

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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.