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Finding the Fourth Proportional to 6,618.12, 9,933.30 and 2,722.80

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Solution

The fourth proportional to 6,618.12, 9,933.30 and 2,722.80 is: 4,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.12 : 9,933.30 = 2,722.80 : x
  2. Step 2: Convert to fraction form
    6,618.12/9,933.30 = 2,722.80/x
  3. Step 3: Cross multiply
    6,618.12x = 9,933.30 × 2,722.80
  4. Step 4: Simplify right side
    6,618.12x = 27,046,389.24
  5. Step 5: Solve for x
    x = 27,046,389.24/6,618.12
  6. Step 6: Final answer
    x = 4,086.72

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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.