Home / 6,645.84-9,961.68-2,261.76

Finding the Fourth Proportional to 6,645.84, 9,961.68 and 2,261.76

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Solution

The fourth proportional to 6,645.84, 9,961.68 and 2,261.76 is: 3,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.84 : 9,961.68 = 2,261.76 : x
  2. Step 2: Convert to fraction form
    6,645.84/9,961.68 = 2,261.76/x
  3. Step 3: Cross multiply
    6,645.84x = 9,961.68 × 2,261.76
  4. Step 4: Simplify right side
    6,645.84x = 22,530,929.36
  5. Step 5: Solve for x
    x = 22,530,929.36/6,645.84
  6. Step 6: Final answer
    x = 3,390.23

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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.