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Finding the Fourth Proportional to 7,200.70, 10,797.40 and 2,520.97

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Solution

The fourth proportional to 7,200.70, 10,797.40 and 2,520.97 is: 3,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.70 : 10,797.40 = 2,520.97 : x
  2. Step 2: Convert to fraction form
    7,200.70/10,797.40 = 2,520.97/x
  3. Step 3: Cross multiply
    7,200.70x = 10,797.40 × 2,520.97
  4. Step 4: Simplify right side
    7,200.70x = 27,219,958.37
  5. Step 5: Solve for x
    x = 27,219,958.37/7,200.70
  6. Step 6: Final answer
    x = 3,780.18

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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.