Home / 6,311.55-9,467.61-2,151.39

Finding the Fourth Proportional to 6,311.55, 9,467.61 and 2,151.39

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Solution

The fourth proportional to 6,311.55, 9,467.61 and 2,151.39 is: 3,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.55 : 9,467.61 = 2,151.39 : x
  2. Step 2: Convert to fraction form
    6,311.55/9,467.61 = 2,151.39/x
  3. Step 3: Cross multiply
    6,311.55x = 9,467.61 × 2,151.39
  4. Step 4: Simplify right side
    6,311.55x = 20,368,521.48
  5. Step 5: Solve for x
    x = 20,368,521.48/6,311.55
  6. Step 6: Final answer
    x = 3,227.18

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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.