Home / 3,516.80-5,272.58-2,129.88

Finding the Fourth Proportional to 3,516.80, 5,272.58 and 2,129.88

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Solution

The fourth proportional to 3,516.80, 5,272.58 and 2,129.88 is: 3,193.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.80 : 5,272.58 = 2,129.88 : x
  2. Step 2: Convert to fraction form
    3,516.80/5,272.58 = 2,129.88/x
  3. Step 3: Cross multiply
    3,516.80x = 5,272.58 × 2,129.88
  4. Step 4: Simplify right side
    3,516.80x = 11,229,962.69
  5. Step 5: Solve for x
    x = 11,229,962.69/3,516.80
  6. Step 6: Final answer
    x = 3,193.23

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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.