Home / 3,968.76-5,474.67-3,687.18

Finding the Fourth Proportional to 3,968.76, 5,474.67 and 3,687.18

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Solution

The fourth proportional to 3,968.76, 5,474.67 and 3,687.18 is: 5,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.76 : 5,474.67 = 3,687.18 : x
  2. Step 2: Convert to fraction form
    3,968.76/5,474.67 = 3,687.18/x
  3. Step 3: Cross multiply
    3,968.76x = 5,474.67 × 3,687.18
  4. Step 4: Simplify right side
    3,968.76x = 20,186,093.73
  5. Step 5: Solve for x
    x = 20,186,093.73/3,968.76
  6. Step 6: Final answer
    x = 5,086.25

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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.