Home / 3,768.40-5,654.22-2,679.76

Finding the Fourth Proportional to 3,768.40, 5,654.22 and 2,679.76

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Solution

The fourth proportional to 3,768.40, 5,654.22 and 2,679.76 is: 4,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.40 : 5,654.22 = 2,679.76 : x
  2. Step 2: Convert to fraction form
    3,768.40/5,654.22 = 2,679.76/x
  3. Step 3: Cross multiply
    3,768.40x = 5,654.22 × 2,679.76
  4. Step 4: Simplify right side
    3,768.40x = 15,151,952.59
  5. Step 5: Solve for x
    x = 15,151,952.59/3,768.40
  6. Step 6: Final answer
    x = 4,020.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.