Home / 3,780.73-5,215.41-2,246.79

Finding the Fourth Proportional to 3,780.73, 5,215.41 and 2,246.79

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Solution

The fourth proportional to 3,780.73, 5,215.41 and 2,246.79 is: 3,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.73 : 5,215.41 = 2,246.79 : x
  2. Step 2: Convert to fraction form
    3,780.73/5,215.41 = 2,246.79/x
  3. Step 3: Cross multiply
    3,780.73x = 5,215.41 × 2,246.79
  4. Step 4: Simplify right side
    3,780.73x = 11,717,921.26
  5. Step 5: Solve for x
    x = 11,717,921.26/3,780.73
  6. Step 6: Final answer
    x = 3,099.38

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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.