Home / 6,606.40-9,903.30-2,221.60

Finding the Fourth Proportional to 6,606.40, 9,903.30 and 2,221.60

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Solution

The fourth proportional to 6,606.40, 9,903.30 and 2,221.60 is: 3,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.40 : 9,903.30 = 2,221.60 : x
  2. Step 2: Convert to fraction form
    6,606.40/9,903.30 = 2,221.60/x
  3. Step 3: Cross multiply
    6,606.40x = 9,903.30 × 2,221.60
  4. Step 4: Simplify right side
    6,606.40x = 22,001,171.28
  5. Step 5: Solve for x
    x = 22,001,171.28/6,606.40
  6. Step 6: Final answer
    x = 3,330.28

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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.