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Finding the Fourth Proportional to 6,770.56, 10,155.72 and 2,666.56

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Solution

The fourth proportional to 6,770.56, 10,155.72 and 2,666.56 is: 3,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,770.56 : 10,155.72 = 2,666.56 : x
  2. Step 2: Convert to fraction form
    6,770.56/10,155.72 = 2,666.56/x
  3. Step 3: Cross multiply
    6,770.56x = 10,155.72 × 2,666.56
  4. Step 4: Simplify right side
    6,770.56x = 27,080,836.72
  5. Step 5: Solve for x
    x = 27,080,836.72/6,770.56
  6. Step 6: Final answer
    x = 3,999.79

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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.