Home / 6,145.75-8,481.20-3,351.31

Finding the Fourth Proportional to 6,145.75, 8,481.20 and 3,351.31

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Solution

The fourth proportional to 6,145.75, 8,481.20 and 3,351.31 is: 4,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.75 : 8,481.20 = 3,351.31 : x
  2. Step 2: Convert to fraction form
    6,145.75/8,481.20 = 3,351.31/x
  3. Step 3: Cross multiply
    6,145.75x = 8,481.20 × 3,351.31
  4. Step 4: Simplify right side
    6,145.75x = 28,423,113.62
  5. Step 5: Solve for x
    x = 28,423,113.62/6,145.75
  6. Step 6: Final answer
    x = 4,624.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.