Home / 3,815.11-5,260.98-2,555.97

Finding the Fourth Proportional to 3,815.11, 5,260.98 and 2,555.97

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Solution

The fourth proportional to 3,815.11, 5,260.98 and 2,555.97 is: 3,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.11 : 5,260.98 = 2,555.97 : x
  2. Step 2: Convert to fraction form
    3,815.11/5,260.98 = 2,555.97/x
  3. Step 3: Cross multiply
    3,815.11x = 5,260.98 × 2,555.97
  4. Step 4: Simplify right side
    3,815.11x = 13,446,907.05
  5. Step 5: Solve for x
    x = 13,446,907.05/3,815.11
  6. Step 6: Final answer
    x = 3,524.64

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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.