Home / 4,608.20-6,912.30-1,321.22

Finding the Fourth Proportional to 4,608.20, 6,912.30 and 1,321.22

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Solution

The fourth proportional to 4,608.20, 6,912.30 and 1,321.22 is: 1,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.20 : 6,912.30 = 1,321.22 : x
  2. Step 2: Convert to fraction form
    4,608.20/6,912.30 = 1,321.22/x
  3. Step 3: Cross multiply
    4,608.20x = 6,912.30 × 1,321.22
  4. Step 4: Simplify right side
    4,608.20x = 9,132,669.01
  5. Step 5: Solve for x
    x = 9,132,669.01/4,608.20
  6. Step 6: Final answer
    x = 1,981.83

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Similar ratio
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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.