Home / 3,401.45-4,693.77-1,909.37

Finding the Fourth Proportional to 3,401.45, 4,693.77 and 1,909.37

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Solution

The fourth proportional to 3,401.45, 4,693.77 and 1,909.37 is: 2,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.45 : 4,693.77 = 1,909.37 : x
  2. Step 2: Convert to fraction form
    3,401.45/4,693.77 = 1,909.37/x
  3. Step 3: Cross multiply
    3,401.45x = 4,693.77 × 1,909.37
  4. Step 4: Simplify right side
    3,401.45x = 8,962,120.16
  5. Step 5: Solve for x
    x = 8,962,120.16/3,401.45
  6. Step 6: Final answer
    x = 2,634.80

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1.5x scale

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.