Home / 2,415.34-3,623.01-1,261.09

Finding the Fourth Proportional to 2,415.34, 3,623.01 and 1,261.09

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Solution

The fourth proportional to 2,415.34, 3,623.01 and 1,261.09 is: 1,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.34 : 3,623.01 = 1,261.09 : x
  2. Step 2: Convert to fraction form
    2,415.34/3,623.01 = 1,261.09/x
  3. Step 3: Cross multiply
    2,415.34x = 3,623.01 × 1,261.09
  4. Step 4: Simplify right side
    2,415.34x = 4,568,941.68
  5. Step 5: Solve for x
    x = 4,568,941.68/2,415.34
  6. Step 6: Final answer
    x = 1,891.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.