Home / 3,401.86-4,693.97-1,909.84

Finding the Fourth Proportional to 3,401.86, 4,693.97 and 1,909.84

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Solution

The fourth proportional to 3,401.86, 4,693.97 and 1,909.84 is: 2,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.86 : 4,693.97 = 1,909.84 : x
  2. Step 2: Convert to fraction form
    3,401.86/4,693.97 = 1,909.84/x
  3. Step 3: Cross multiply
    3,401.86x = 4,693.97 × 1,909.84
  4. Step 4: Simplify right side
    3,401.86x = 8,964,698.65
  5. Step 5: Solve for x
    x = 8,964,698.65/3,401.86
  6. Step 6: Final answer
    x = 2,635.24

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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.