Home / 2,723.78-4,078.73-1,902.63

Finding the Fourth Proportional to 2,723.78, 4,078.73 and 1,902.63

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Solution

The fourth proportional to 2,723.78, 4,078.73 and 1,902.63 is: 2,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.78 : 4,078.73 = 1,902.63 : x
  2. Step 2: Convert to fraction form
    2,723.78/4,078.73 = 1,902.63/x
  3. Step 3: Cross multiply
    2,723.78x = 4,078.73 × 1,902.63
  4. Step 4: Simplify right side
    2,723.78x = 7,760,314.06
  5. Step 5: Solve for x
    x = 7,760,314.06/2,723.78
  6. Step 6: Final answer
    x = 2,849.10

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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.