Home / 2,745.18-4,119.26-1,821.17

Finding the Fourth Proportional to 2,745.18, 4,119.26 and 1,821.17

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Solution

The fourth proportional to 2,745.18, 4,119.26 and 1,821.17 is: 2,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.18 : 4,119.26 = 1,821.17 : x
  2. Step 2: Convert to fraction form
    2,745.18/4,119.26 = 1,821.17/x
  3. Step 3: Cross multiply
    2,745.18x = 4,119.26 × 1,821.17
  4. Step 4: Simplify right side
    2,745.18x = 7,501,873.93
  5. Step 5: Solve for x
    x = 7,501,873.93/2,745.18
  6. Step 6: Final answer
    x = 2,732.74

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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.