Home / 2,790.75-3,851.25-1,548.75

Finding the Fourth Proportional to 2,790.75, 3,851.25 and 1,548.75

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Solution

The fourth proportional to 2,790.75, 3,851.25 and 1,548.75 is: 2,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.75 : 3,851.25 = 1,548.75 : x
  2. Step 2: Convert to fraction form
    2,790.75/3,851.25 = 1,548.75/x
  3. Step 3: Cross multiply
    2,790.75x = 3,851.25 × 1,548.75
  4. Step 4: Simplify right side
    2,790.75x = 5,964,623.44
  5. Step 5: Solve for x
    x = 5,964,623.44/2,790.75
  6. Step 6: Final answer
    x = 2,137.28

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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.