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Finding the Fourth Proportional to 6,642.72, 9,964.08 and 2,744.46

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Solution

The fourth proportional to 6,642.72, 9,964.08 and 2,744.46 is: 4,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.72 : 9,964.08 = 2,744.46 : x
  2. Step 2: Convert to fraction form
    6,642.72/9,964.08 = 2,744.46/x
  3. Step 3: Cross multiply
    6,642.72x = 9,964.08 × 2,744.46
  4. Step 4: Simplify right side
    6,642.72x = 27,346,019.00
  5. Step 5: Solve for x
    x = 27,346,019.00/6,642.72
  6. Step 6: Final answer
    x = 4,116.69

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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.