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Finding the Fourth Proportional to 6,506.80, 9,760.20 and 3,226.30

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Solution

The fourth proportional to 6,506.80, 9,760.20 and 3,226.30 is: 4,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506.80 : 9,760.20 = 3,226.30 : x
  2. Step 2: Convert to fraction form
    6,506.80/9,760.20 = 3,226.30/x
  3. Step 3: Cross multiply
    6,506.80x = 9,760.20 × 3,226.30
  4. Step 4: Simplify right side
    6,506.80x = 31,489,333.26
  5. Step 5: Solve for x
    x = 31,489,333.26/6,506.80
  6. Step 6: Final answer
    x = 4,839.45

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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.