Home / 5,920.12-8,169.81-3,267.61

Finding the Fourth Proportional to 5,920.12, 8,169.81 and 3,267.61

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Solution

The fourth proportional to 5,920.12, 8,169.81 and 3,267.61 is: 4,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.12 : 8,169.81 = 3,267.61 : x
  2. Step 2: Convert to fraction form
    5,920.12/8,169.81 = 3,267.61/x
  3. Step 3: Cross multiply
    5,920.12x = 8,169.81 × 3,267.61
  4. Step 4: Simplify right side
    5,920.12x = 26,695,752.85
  5. Step 5: Solve for x
    x = 26,695,752.85/5,920.12
  6. Step 6: Final answer
    x = 4,509.33

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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.