Home / 4,091.96-6,128.58-3,212.46

Finding the Fourth Proportional to 4,091.96, 6,128.58 and 3,212.46

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Solution

The fourth proportional to 4,091.96, 6,128.58 and 3,212.46 is: 4,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.96 : 6,128.58 = 3,212.46 : x
  2. Step 2: Convert to fraction form
    4,091.96/6,128.58 = 3,212.46/x
  3. Step 3: Cross multiply
    4,091.96x = 6,128.58 × 3,212.46
  4. Step 4: Simplify right side
    4,091.96x = 19,687,818.11
  5. Step 5: Solve for x
    x = 19,687,818.11/4,091.96
  6. Step 6: Final answer
    x = 4,811.34

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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.