Home / 2,771.19-3,818.96-1,983.87

Finding the Fourth Proportional to 2,771.19, 3,818.96 and 1,983.87

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Solution

The fourth proportional to 2,771.19, 3,818.96 and 1,983.87 is: 2,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.19 : 3,818.96 = 1,983.87 : x
  2. Step 2: Convert to fraction form
    2,771.19/3,818.96 = 1,983.87/x
  3. Step 3: Cross multiply
    2,771.19x = 3,818.96 × 1,983.87
  4. Step 4: Simplify right side
    2,771.19x = 7,576,307.09
  5. Step 5: Solve for x
    x = 7,576,307.09/2,771.19
  6. Step 6: Final answer
    x = 2,733.96

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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.