Home / 4,135.81-6,198.43-1,939.70

Finding the Fourth Proportional to 4,135.81, 6,198.43 and 1,939.70

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Solution

The fourth proportional to 4,135.81, 6,198.43 and 1,939.70 is: 2,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.81 : 6,198.43 = 1,939.70 : x
  2. Step 2: Convert to fraction form
    4,135.81/6,198.43 = 1,939.70/x
  3. Step 3: Cross multiply
    4,135.81x = 6,198.43 × 1,939.70
  4. Step 4: Simplify right side
    4,135.81x = 12,023,094.67
  5. Step 5: Solve for x
    x = 12,023,094.67/4,135.81
  6. Step 6: Final answer
    x = 2,907.07

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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.