Home / 3,074.34-4,242.39-2,078.04

Finding the Fourth Proportional to 3,074.34, 4,242.39 and 2,078.04

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Solution

The fourth proportional to 3,074.34, 4,242.39 and 2,078.04 is: 2,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.34 : 4,242.39 = 2,078.04 : x
  2. Step 2: Convert to fraction form
    3,074.34/4,242.39 = 2,078.04/x
  3. Step 3: Cross multiply
    3,074.34x = 4,242.39 × 2,078.04
  4. Step 4: Simplify right side
    3,074.34x = 8,815,856.12
  5. Step 5: Solve for x
    x = 8,815,856.12/3,074.34
  6. Step 6: Final answer
    x = 2,867.56

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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.