Home / 3,954.72-5,456.44-2,382.80

Finding the Fourth Proportional to 3,954.72, 5,456.44 and 2,382.80

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Solution

The fourth proportional to 3,954.72, 5,456.44 and 2,382.80 is: 3,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.72 : 5,456.44 = 2,382.80 : x
  2. Step 2: Convert to fraction form
    3,954.72/5,456.44 = 2,382.80/x
  3. Step 3: Cross multiply
    3,954.72x = 5,456.44 × 2,382.80
  4. Step 4: Simplify right side
    3,954.72x = 13,001,605.23
  5. Step 5: Solve for x
    x = 13,001,605.23/3,954.72
  6. Step 6: Final answer
    x = 3,287.62

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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.