Home / 6,745.20-10,115.40-3,049.20

Finding the Fourth Proportional to 6,745.20, 10,115.40 and 3,049.20

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Solution

The fourth proportional to 6,745.20, 10,115.40 and 3,049.20 is: 4,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.20 : 10,115.40 = 3,049.20 : x
  2. Step 2: Convert to fraction form
    6,745.20/10,115.40 = 3,049.20/x
  3. Step 3: Cross multiply
    6,745.20x = 10,115.40 × 3,049.20
  4. Step 4: Simplify right side
    6,745.20x = 30,843,877.68
  5. Step 5: Solve for x
    x = 30,843,877.68/6,745.20
  6. Step 6: Final answer
    x = 4,572.72

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1.5x scale

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.