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Finding the Fourth Proportional to 7,164.80, 10,740.72 and 2,546.72

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Solution

The fourth proportional to 7,164.80, 10,740.72 and 2,546.72 is: 3,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.80 : 10,740.72 = 2,546.72 : x
  2. Step 2: Convert to fraction form
    7,164.80/10,740.72 = 2,546.72/x
  3. Step 3: Cross multiply
    7,164.80x = 10,740.72 × 2,546.72
  4. Step 4: Simplify right side
    7,164.80x = 27,353,606.44
  5. Step 5: Solve for x
    x = 27,353,606.44/7,164.80
  6. Step 6: Final answer
    x = 3,817.78

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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.