Home / 4,519.52-6,771-3,128.88

Finding the Fourth Proportional to 4,519.52, 6,771 and 3,128.88

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Solution

The fourth proportional to 4,519.52, 6,771 and 3,128.88 is: 4,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.52 : 6,771 = 3,128.88 : x
  2. Step 2: Convert to fraction form
    4,519.52/6,771 = 3,128.88/x
  3. Step 3: Cross multiply
    4,519.52x = 6,771 × 3,128.88
  4. Step 4: Simplify right side
    4,519.52x = 21,185,646.48
  5. Step 5: Solve for x
    x = 21,185,646.48/4,519.52
  6. Step 6: Final answer
    x = 4,687.59

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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.