Home / 4,078.62-6,113.88-3,101.76

Finding the Fourth Proportional to 4,078.62, 6,113.88 and 3,101.76

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Solution

The fourth proportional to 4,078.62, 6,113.88 and 3,101.76 is: 4,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.62 : 6,113.88 = 3,101.76 : x
  2. Step 2: Convert to fraction form
    4,078.62/6,113.88 = 3,101.76/x
  3. Step 3: Cross multiply
    4,078.62x = 6,113.88 × 3,101.76
  4. Step 4: Simplify right side
    4,078.62x = 18,963,788.43
  5. Step 5: Solve for x
    x = 18,963,788.43/4,078.62
  6. Step 6: Final answer
    x = 4,649.56

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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.