Home / 5,471.55-8,207.45-1,961.79

Finding the Fourth Proportional to 5,471.55, 8,207.45 and 1,961.79

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Solution

The fourth proportional to 5,471.55, 8,207.45 and 1,961.79 is: 2,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.55 : 8,207.45 = 1,961.79 : x
  2. Step 2: Convert to fraction form
    5,471.55/8,207.45 = 1,961.79/x
  3. Step 3: Cross multiply
    5,471.55x = 8,207.45 × 1,961.79
  4. Step 4: Simplify right side
    5,471.55x = 16,101,283.53
  5. Step 5: Solve for x
    x = 16,101,283.53/5,471.55
  6. Step 6: Final answer
    x = 2,942.73

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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.