Home / 2,771.97-4,159.27-1,385.42

Finding the Fourth Proportional to 2,771.97, 4,159.27 and 1,385.42

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Solution

The fourth proportional to 2,771.97, 4,159.27 and 1,385.42 is: 2,078.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.97 : 4,159.27 = 1,385.42 : x
  2. Step 2: Convert to fraction form
    2,771.97/4,159.27 = 1,385.42/x
  3. Step 3: Cross multiply
    2,771.97x = 4,159.27 × 1,385.42
  4. Step 4: Simplify right side
    2,771.97x = 5,762,328.92
  5. Step 5: Solve for x
    x = 5,762,328.92/2,771.97
  6. Step 6: Final answer
    x = 2,078.78

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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.