Home / 5,745.20-8,619.30-1,849.70

Finding the Fourth Proportional to 5,745.20, 8,619.30 and 1,849.70

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Solution

The fourth proportional to 5,745.20, 8,619.30 and 1,849.70 is: 2,775.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.20 : 8,619.30 = 1,849.70 : x
  2. Step 2: Convert to fraction form
    5,745.20/8,619.30 = 1,849.70/x
  3. Step 3: Cross multiply
    5,745.20x = 8,619.30 × 1,849.70
  4. Step 4: Simplify right side
    5,745.20x = 15,943,119.21
  5. Step 5: Solve for x
    x = 15,943,119.21/5,745.20
  6. Step 6: Final answer
    x = 2,775.03

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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.