Home / 3,954.24-5,456.48-2,185.76

Finding the Fourth Proportional to 3,954.24, 5,456.48 and 2,185.76

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Solution

The fourth proportional to 3,954.24, 5,456.48 and 2,185.76 is: 3,016.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.24 : 5,456.48 = 2,185.76 : x
  2. Step 2: Convert to fraction form
    3,954.24/5,456.48 = 2,185.76/x
  3. Step 3: Cross multiply
    3,954.24x = 5,456.48 × 2,185.76
  4. Step 4: Simplify right side
    3,954.24x = 11,926,555.72
  5. Step 5: Solve for x
    x = 11,926,555.72/3,954.24
  6. Step 6: Final answer
    x = 3,016.14

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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.