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Finding the Fourth Proportional to 5,471.51, 8,205.27 and 1,960.58

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Solution

The fourth proportional to 5,471.51, 8,205.27 and 1,960.58 is: 2,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.51 : 8,205.27 = 1,960.58 : x
  2. Step 2: Convert to fraction form
    5,471.51/8,205.27 = 1,960.58/x
  3. Step 3: Cross multiply
    5,471.51x = 8,205.27 × 1,960.58
  4. Step 4: Simplify right side
    5,471.51x = 16,087,078.45
  5. Step 5: Solve for x
    x = 16,087,078.45/5,471.51
  6. Step 6: Final answer
    x = 2,940.15

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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.