Home / 4,138.06-6,198.76-1,913.76

Finding the Fourth Proportional to 4,138.06, 6,198.76 and 1,913.76

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Solution

The fourth proportional to 4,138.06, 6,198.76 and 1,913.76 is: 2,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.06 : 6,198.76 = 1,913.76 : x
  2. Step 2: Convert to fraction form
    4,138.06/6,198.76 = 1,913.76/x
  3. Step 3: Cross multiply
    4,138.06x = 6,198.76 × 1,913.76
  4. Step 4: Simplify right side
    4,138.06x = 11,862,938.94
  5. Step 5: Solve for x
    x = 11,862,938.94/4,138.06
  6. Step 6: Final answer
    x = 2,866.79

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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.