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Finding the Fourth Proportional to 3,397.55, 5,096.79 and 3,210.80

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Solution

The fourth proportional to 3,397.55, 5,096.79 and 3,210.80 is: 4,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.55 : 5,096.79 = 3,210.80 : x
  2. Step 2: Convert to fraction form
    3,397.55/5,096.79 = 3,210.80/x
  3. Step 3: Cross multiply
    3,397.55x = 5,096.79 × 3,210.80
  4. Step 4: Simplify right side
    3,397.55x = 16,364,747.85
  5. Step 5: Solve for x
    x = 16,364,747.85/3,397.55
  6. Step 6: Final answer
    x = 4,816.64

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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.