Home / 3,550.06-4,909.68-3,107.20

Finding the Fourth Proportional to 3,550.06, 4,909.68 and 3,107.20

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Solution

The fourth proportional to 3,550.06, 4,909.68 and 3,107.20 is: 4,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.06 : 4,909.68 = 3,107.20 : x
  2. Step 2: Convert to fraction form
    3,550.06/4,909.68 = 3,107.20/x
  3. Step 3: Cross multiply
    3,550.06x = 4,909.68 × 3,107.20
  4. Step 4: Simplify right side
    3,550.06x = 15,255,357.70
  5. Step 5: Solve for x
    x = 15,255,357.70/3,550.06
  6. Step 6: Final answer
    x = 4,297.21

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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.