Home / 2,771.81-4,156.97-1,894.16

Finding the Fourth Proportional to 2,771.81, 4,156.97 and 1,894.16

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Solution

The fourth proportional to 2,771.81, 4,156.97 and 1,894.16 is: 2,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.81 : 4,156.97 = 1,894.16 : x
  2. Step 2: Convert to fraction form
    2,771.81/4,156.97 = 1,894.16/x
  3. Step 3: Cross multiply
    2,771.81x = 4,156.97 × 1,894.16
  4. Step 4: Simplify right side
    2,771.81x = 7,873,966.30
  5. Step 5: Solve for x
    x = 7,873,966.30/2,771.81
  6. Step 6: Final answer
    x = 2,840.73

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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.