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Finding the Fourth Proportional to 6,527.80, 9,791.70 and 2,631.30

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Solution

The fourth proportional to 6,527.80, 9,791.70 and 2,631.30 is: 3,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,527.80 : 9,791.70 = 2,631.30 : x
  2. Step 2: Convert to fraction form
    6,527.80/9,791.70 = 2,631.30/x
  3. Step 3: Cross multiply
    6,527.80x = 9,791.70 × 2,631.30
  4. Step 4: Simplify right side
    6,527.80x = 25,764,900.21
  5. Step 5: Solve for x
    x = 25,764,900.21/6,527.80
  6. Step 6: Final answer
    x = 3,946.95

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Similar ratio
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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.