Home / 3,609.25-5,385.94-3,220.45

Finding the Fourth Proportional to 3,609.25, 5,385.94 and 3,220.45

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Solution

The fourth proportional to 3,609.25, 5,385.94 and 3,220.45 is: 4,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.25 : 5,385.94 = 3,220.45 : x
  2. Step 2: Convert to fraction form
    3,609.25/5,385.94 = 3,220.45/x
  3. Step 3: Cross multiply
    3,609.25x = 5,385.94 × 3,220.45
  4. Step 4: Simplify right side
    3,609.25x = 17,345,150.47
  5. Step 5: Solve for x
    x = 17,345,150.47/3,609.25
  6. Step 6: Final answer
    x = 4,805.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.