Home / 3,908.45-5,392.32-2,228.65

Finding the Fourth Proportional to 3,908.45, 5,392.32 and 2,228.65

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Solution

The fourth proportional to 3,908.45, 5,392.32 and 2,228.65 is: 3,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.45 : 5,392.32 = 2,228.65 : x
  2. Step 2: Convert to fraction form
    3,908.45/5,392.32 = 2,228.65/x
  3. Step 3: Cross multiply
    3,908.45x = 5,392.32 × 2,228.65
  4. Step 4: Simplify right side
    3,908.45x = 12,017,572.13
  5. Step 5: Solve for x
    x = 12,017,572.13/3,908.45
  6. Step 6: Final answer
    x = 3,074.76

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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.