Home / 6,311.45-9,467.37-2,151.56

Finding the Fourth Proportional to 6,311.45, 9,467.37 and 2,151.56

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Solution

The fourth proportional to 6,311.45, 9,467.37 and 2,151.56 is: 3,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.45 : 9,467.37 = 2,151.56 : x
  2. Step 2: Convert to fraction form
    6,311.45/9,467.37 = 2,151.56/x
  3. Step 3: Cross multiply
    6,311.45x = 9,467.37 × 2,151.56
  4. Step 4: Simplify right side
    6,311.45x = 20,369,567.26
  5. Step 5: Solve for x
    x = 20,369,567.26/6,311.45
  6. Step 6: Final answer
    x = 3,227.40

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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.