Home / 4,091.16-6,138.60-1,900.56

Finding the Fourth Proportional to 4,091.16, 6,138.60 and 1,900.56

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Solution

The fourth proportional to 4,091.16, 6,138.60 and 1,900.56 is: 2,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.16 : 6,138.60 = 1,900.56 : x
  2. Step 2: Convert to fraction form
    4,091.16/6,138.60 = 1,900.56/x
  3. Step 3: Cross multiply
    4,091.16x = 6,138.60 × 1,900.56
  4. Step 4: Simplify right side
    4,091.16x = 11,666,777.62
  5. Step 5: Solve for x
    x = 11,666,777.62/4,091.16
  6. Step 6: Final answer
    x = 2,851.70

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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.