Home / 5,471.64-8,207.59-1,961.89

Finding the Fourth Proportional to 5,471.64, 8,207.59 and 1,961.89

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Solution

The fourth proportional to 5,471.64, 8,207.59 and 1,961.89 is: 2,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.64 : 8,207.59 = 1,961.89 : x
  2. Step 2: Convert to fraction form
    5,471.64/8,207.59 = 1,961.89/x
  3. Step 3: Cross multiply
    5,471.64x = 8,207.59 × 1,961.89
  4. Step 4: Simplify right side
    5,471.64x = 16,102,388.75
  5. Step 5: Solve for x
    x = 16,102,388.75/5,471.64
  6. Step 6: Final answer
    x = 2,942.88

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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.