Home / 3,961.11-5,939.93-1,881.72

Finding the Fourth Proportional to 3,961.11, 5,939.93 and 1,881.72

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Solution

The fourth proportional to 3,961.11, 5,939.93 and 1,881.72 is: 2,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.11 : 5,939.93 = 1,881.72 : x
  2. Step 2: Convert to fraction form
    3,961.11/5,939.93 = 1,881.72/x
  3. Step 3: Cross multiply
    3,961.11x = 5,939.93 × 1,881.72
  4. Step 4: Simplify right side
    3,961.11x = 11,177,275.67
  5. Step 5: Solve for x
    x = 11,177,275.67/3,961.11
  6. Step 6: Final answer
    x = 2,821.75

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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.