Home / 3,119.74-4,679.62-1,364.38

Finding the Fourth Proportional to 3,119.74, 4,679.62 and 1,364.38

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Solution

The fourth proportional to 3,119.74, 4,679.62 and 1,364.38 is: 2,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.74 : 4,679.62 = 1,364.38 : x
  2. Step 2: Convert to fraction form
    3,119.74/4,679.62 = 1,364.38/x
  3. Step 3: Cross multiply
    3,119.74x = 4,679.62 × 1,364.38
  4. Step 4: Simplify right side
    3,119.74x = 6,384,779.94
  5. Step 5: Solve for x
    x = 6,384,779.94/3,119.74
  6. Step 6: Final answer
    x = 2,046.57

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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.