Home / 3,513.88-5,268.22-2,126.89

Finding the Fourth Proportional to 3,513.88, 5,268.22 and 2,126.89

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Solution

The fourth proportional to 3,513.88, 5,268.22 and 2,126.89 is: 3,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.88 : 5,268.22 = 2,126.89 : x
  2. Step 2: Convert to fraction form
    3,513.88/5,268.22 = 2,126.89/x
  3. Step 3: Cross multiply
    3,513.88x = 5,268.22 × 2,126.89
  4. Step 4: Simplify right side
    3,513.88x = 11,204,915.83
  5. Step 5: Solve for x
    x = 11,204,915.83/3,513.88
  6. Step 6: Final answer
    x = 3,188.76

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1.5x scale

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.