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Finding the Fourth Proportional to 6,633.19, 9,947.48 and 2,189.91

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Solution

The fourth proportional to 6,633.19, 9,947.48 and 2,189.91 is: 3,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,633.19 : 9,947.48 = 2,189.91 : x
  2. Step 2: Convert to fraction form
    6,633.19/9,947.48 = 2,189.91/x
  3. Step 3: Cross multiply
    6,633.19x = 9,947.48 × 2,189.91
  4. Step 4: Simplify right side
    6,633.19x = 21,784,025.24
  5. Step 5: Solve for x
    x = 21,784,025.24/6,633.19
  6. Step 6: Final answer
    x = 3,284.09

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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.