Home / 3,966.68-5,474.70-2,287.80

Finding the Fourth Proportional to 3,966.68, 5,474.70 and 2,287.80

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Solution

The fourth proportional to 3,966.68, 5,474.70 and 2,287.80 is: 3,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.68 : 5,474.70 = 2,287.80 : x
  2. Step 2: Convert to fraction form
    3,966.68/5,474.70 = 2,287.80/x
  3. Step 3: Cross multiply
    3,966.68x = 5,474.70 × 2,287.80
  4. Step 4: Simplify right side
    3,966.68x = 12,525,018.66
  5. Step 5: Solve for x
    x = 12,525,018.66/3,966.68
  6. Step 6: Final answer
    x = 3,157.56

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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.