Home / 4,128.47-6,189.51-3,579.89

Finding the Fourth Proportional to 4,128.47, 6,189.51 and 3,579.89

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Solution

The fourth proportional to 4,128.47, 6,189.51 and 3,579.89 is: 5,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.47 : 6,189.51 = 3,579.89 : x
  2. Step 2: Convert to fraction form
    4,128.47/6,189.51 = 3,579.89/x
  3. Step 3: Cross multiply
    4,128.47x = 6,189.51 × 3,579.89
  4. Step 4: Simplify right side
    4,128.47x = 22,157,747.05
  5. Step 5: Solve for x
    x = 22,157,747.05/4,128.47
  6. Step 6: Final answer
    x = 5,367.07

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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.