Home / 6,638.91-9,958.99-2,196.59

Finding the Fourth Proportional to 6,638.91, 9,958.99 and 2,196.59

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Solution

The fourth proportional to 6,638.91, 9,958.99 and 2,196.59 is: 3,295.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.91 : 9,958.99 = 2,196.59 : x
  2. Step 2: Convert to fraction form
    6,638.91/9,958.99 = 2,196.59/x
  3. Step 3: Cross multiply
    6,638.91x = 9,958.99 × 2,196.59
  4. Step 4: Simplify right side
    6,638.91x = 21,875,817.84
  5. Step 5: Solve for x
    x = 21,875,817.84/6,638.91
  6. Step 6: Final answer
    x = 3,295.09

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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.