Home / 7,179.20-9,907.32-4,195.16

Finding the Fourth Proportional to 7,179.20, 9,907.32 and 4,195.16

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Solution

The fourth proportional to 7,179.20, 9,907.32 and 4,195.16 is: 5,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.20 : 9,907.32 = 4,195.16 : x
  2. Step 2: Convert to fraction form
    7,179.20/9,907.32 = 4,195.16/x
  3. Step 3: Cross multiply
    7,179.20x = 9,907.32 × 4,195.16
  4. Step 4: Simplify right side
    7,179.20x = 41,562,792.57
  5. Step 5: Solve for x
    x = 41,562,792.57/7,179.20
  6. Step 6: Final answer
    x = 5,789.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.