Home / 6,601.96-9,903.84-2,220.68

Finding the Fourth Proportional to 6,601.96, 9,903.84 and 2,220.68

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Solution

The fourth proportional to 6,601.96, 9,903.84 and 2,220.68 is: 3,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.96 : 9,903.84 = 2,220.68 : x
  2. Step 2: Convert to fraction form
    6,601.96/9,903.84 = 2,220.68/x
  3. Step 3: Cross multiply
    6,601.96x = 9,903.84 × 2,220.68
  4. Step 4: Simplify right side
    6,601.96x = 21,993,259.41
  5. Step 5: Solve for x
    x = 21,993,259.41/6,601.96
  6. Step 6: Final answer
    x = 3,331.32

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Double scale
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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.