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Finding the Fourth Proportional to 6,809.70, 10,218.96 and 2,914.05

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Solution

The fourth proportional to 6,809.70, 10,218.96 and 2,914.05 is: 4,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.70 : 10,218.96 = 2,914.05 : x
  2. Step 2: Convert to fraction form
    6,809.70/10,218.96 = 2,914.05/x
  3. Step 3: Cross multiply
    6,809.70x = 10,218.96 × 2,914.05
  4. Step 4: Simplify right side
    6,809.70x = 29,778,560.39
  5. Step 5: Solve for x
    x = 29,778,560.39/6,809.70
  6. Step 6: Final answer
    x = 4,372.96

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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.