Home / 3,040.81-4,193.52-1,919.81

Finding the Fourth Proportional to 3,040.81, 4,193.52 and 1,919.81

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Solution

The fourth proportional to 3,040.81, 4,193.52 and 1,919.81 is: 2,647.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.81 : 4,193.52 = 1,919.81 : x
  2. Step 2: Convert to fraction form
    3,040.81/4,193.52 = 1,919.81/x
  3. Step 3: Cross multiply
    3,040.81x = 4,193.52 × 1,919.81
  4. Step 4: Simplify right side
    3,040.81x = 8,050,761.63
  5. Step 5: Solve for x
    x = 8,050,761.63/3,040.81
  6. Step 6: Final answer
    x = 2,647.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.