Home / 2,905.27-4,006.20-2,065.09

Finding the Fourth Proportional to 2,905.27, 4,006.20 and 2,065.09

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Solution

The fourth proportional to 2,905.27, 4,006.20 and 2,065.09 is: 2,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.27 : 4,006.20 = 2,065.09 : x
  2. Step 2: Convert to fraction form
    2,905.27/4,006.20 = 2,065.09/x
  3. Step 3: Cross multiply
    2,905.27x = 4,006.20 × 2,065.09
  4. Step 4: Simplify right side
    2,905.27x = 8,273,163.56
  5. Step 5: Solve for x
    x = 8,273,163.56/2,905.27
  6. Step 6: Final answer
    x = 2,847.64

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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.