Home / 3,401.87-4,694.42-1,909.76

Finding the Fourth Proportional to 3,401.87, 4,694.42 and 1,909.76

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Solution

The fourth proportional to 3,401.87, 4,694.42 and 1,909.76 is: 2,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.87 : 4,694.42 = 1,909.76 : x
  2. Step 2: Convert to fraction form
    3,401.87/4,694.42 = 1,909.76/x
  3. Step 3: Cross multiply
    3,401.87x = 4,694.42 × 1,909.76
  4. Step 4: Simplify right side
    3,401.87x = 8,965,196.84
  5. Step 5: Solve for x
    x = 8,965,196.84/3,401.87
  6. Step 6: Final answer
    x = 2,635.38

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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.