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Finding the Fourth Proportional to 6,645.92, 9,969.90 and 2,204.60

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Solution

The fourth proportional to 6,645.92, 9,969.90 and 2,204.60 is: 3,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.92 : 9,969.90 = 2,204.60 : x
  2. Step 2: Convert to fraction form
    6,645.92/9,969.90 = 2,204.60/x
  3. Step 3: Cross multiply
    6,645.92x = 9,969.90 × 2,204.60
  4. Step 4: Simplify right side
    6,645.92x = 21,979,641.54
  5. Step 5: Solve for x
    x = 21,979,641.54/6,645.92
  6. Step 6: Final answer
    x = 3,307.24

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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.