Home / 3,401.60-4,694.22-1,909.58

Finding the Fourth Proportional to 3,401.60, 4,694.22 and 1,909.58

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Solution

The fourth proportional to 3,401.60, 4,694.22 and 1,909.58 is: 2,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.60 : 4,694.22 = 1,909.58 : x
  2. Step 2: Convert to fraction form
    3,401.60/4,694.22 = 1,909.58/x
  3. Step 3: Cross multiply
    3,401.60x = 4,694.22 × 1,909.58
  4. Step 4: Simplify right side
    3,401.60x = 8,963,965.16
  5. Step 5: Solve for x
    x = 8,963,965.16/3,401.60
  6. Step 6: Final answer
    x = 2,635.22

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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.