Home / 3,954.07-5,456.56-2,185.64

Finding the Fourth Proportional to 3,954.07, 5,456.56 and 2,185.64

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Solution

The fourth proportional to 3,954.07, 5,456.56 and 2,185.64 is: 3,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.07 : 5,456.56 = 2,185.64 : x
  2. Step 2: Convert to fraction form
    3,954.07/5,456.56 = 2,185.64/x
  3. Step 3: Cross multiply
    3,954.07x = 5,456.56 × 2,185.64
  4. Step 4: Simplify right side
    3,954.07x = 11,926,075.80
  5. Step 5: Solve for x
    x = 11,926,075.80/3,954.07
  6. Step 6: Final answer
    x = 3,016.15

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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.