Home / 4,078.46-5,625.78-3,087.56

Finding the Fourth Proportional to 4,078.46, 5,625.78 and 3,087.56

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Solution

The fourth proportional to 4,078.46, 5,625.78 and 3,087.56 is: 4,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.46 : 5,625.78 = 3,087.56 : x
  2. Step 2: Convert to fraction form
    4,078.46/5,625.78 = 3,087.56/x
  3. Step 3: Cross multiply
    4,078.46x = 5,625.78 × 3,087.56
  4. Step 4: Simplify right side
    4,078.46x = 17,369,933.30
  5. Step 5: Solve for x
    x = 17,369,933.30/4,078.46
  6. Step 6: Final answer
    x = 4,258.94

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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.