Home / 5,771.54-7,960.46-3,979.60

Finding the Fourth Proportional to 5,771.54, 7,960.46 and 3,979.60

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Solution

The fourth proportional to 5,771.54, 7,960.46 and 3,979.60 is: 5,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.54 : 7,960.46 = 3,979.60 : x
  2. Step 2: Convert to fraction form
    5,771.54/7,960.46 = 3,979.60/x
  3. Step 3: Cross multiply
    5,771.54x = 7,960.46 × 3,979.60
  4. Step 4: Simplify right side
    5,771.54x = 31,679,446.62
  5. Step 5: Solve for x
    x = 31,679,446.62/5,771.54
  6. Step 6: Final answer
    x = 5,488.91

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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.