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Finding the Fourth Proportional to 6,811.80, 10,217.70 and 2,429.70

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Solution

The fourth proportional to 6,811.80, 10,217.70 and 2,429.70 is: 3,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.80 : 10,217.70 = 2,429.70 : x
  2. Step 2: Convert to fraction form
    6,811.80/10,217.70 = 2,429.70/x
  3. Step 3: Cross multiply
    6,811.80x = 10,217.70 × 2,429.70
  4. Step 4: Simplify right side
    6,811.80x = 24,825,945.69
  5. Step 5: Solve for x
    x = 24,825,945.69/6,811.80
  6. Step 6: Final answer
    x = 3,644.55

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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.