Home / 3,626.91-5,015.18-2,879.55

Finding the Fourth Proportional to 3,626.91, 5,015.18 and 2,879.55

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Solution

The fourth proportional to 3,626.91, 5,015.18 and 2,879.55 is: 3,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.91 : 5,015.18 = 2,879.55 : x
  2. Step 2: Convert to fraction form
    3,626.91/5,015.18 = 2,879.55/x
  3. Step 3: Cross multiply
    3,626.91x = 5,015.18 × 2,879.55
  4. Step 4: Simplify right side
    3,626.91x = 14,441,468.77
  5. Step 5: Solve for x
    x = 14,441,468.77/3,626.91
  6. Step 6: Final answer
    x = 3,981.76

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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.