Home / 2,771.31-4,157.73-1,382.97

Finding the Fourth Proportional to 2,771.31, 4,157.73 and 1,382.97

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Solution

The fourth proportional to 2,771.31, 4,157.73 and 1,382.97 is: 2,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.31 : 4,157.73 = 1,382.97 : x
  2. Step 2: Convert to fraction form
    2,771.31/4,157.73 = 1,382.97/x
  3. Step 3: Cross multiply
    2,771.31x = 4,157.73 × 1,382.97
  4. Step 4: Simplify right side
    2,771.31x = 5,750,031.45
  5. Step 5: Solve for x
    x = 5,750,031.45/2,771.31
  6. Step 6: Final answer
    x = 2,074.84

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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.