Home / 3,401.84-4,694.28-1,909.64

Finding the Fourth Proportional to 3,401.84, 4,694.28 and 1,909.64

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Solution

The fourth proportional to 3,401.84, 4,694.28 and 1,909.64 is: 2,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.84 : 4,694.28 = 1,909.64 : x
  2. Step 2: Convert to fraction form
    3,401.84/4,694.28 = 1,909.64/x
  3. Step 3: Cross multiply
    3,401.84x = 4,694.28 × 1,909.64
  4. Step 4: Simplify right side
    3,401.84x = 8,964,384.86
  5. Step 5: Solve for x
    x = 8,964,384.86/3,401.84
  6. Step 6: Final answer
    x = 2,635.16

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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.