Home / 3,776.64-5,211.38-2,205.65

Finding the Fourth Proportional to 3,776.64, 5,211.38 and 2,205.65

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Solution

The fourth proportional to 3,776.64, 5,211.38 and 2,205.65 is: 3,043.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.64 : 5,211.38 = 2,205.65 : x
  2. Step 2: Convert to fraction form
    3,776.64/5,211.38 = 2,205.65/x
  3. Step 3: Cross multiply
    3,776.64x = 5,211.38 × 2,205.65
  4. Step 4: Simplify right side
    3,776.64x = 11,494,480.30
  5. Step 5: Solve for x
    x = 11,494,480.30/3,776.64
  6. Step 6: Final answer
    x = 3,043.57

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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.