Home / 7,480.57-11,221.04-3,580.69

Finding the Fourth Proportional to 7,480.57, 11,221.04 and 3,580.69

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Solution

The fourth proportional to 7,480.57, 11,221.04 and 3,580.69 is: 5,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.57 : 11,221.04 = 3,580.69 : x
  2. Step 2: Convert to fraction form
    7,480.57/11,221.04 = 3,580.69/x
  3. Step 3: Cross multiply
    7,480.57x = 11,221.04 × 3,580.69
  4. Step 4: Simplify right side
    7,480.57x = 40,179,065.72
  5. Step 5: Solve for x
    x = 40,179,065.72/7,480.57
  6. Step 6: Final answer
    x = 5,371.12

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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.