Home / 3,979.64-5,973.10-2,132.84

Finding the Fourth Proportional to 3,979.64, 5,973.10 and 2,132.84

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Solution

The fourth proportional to 3,979.64, 5,973.10 and 2,132.84 is: 3,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.64 : 5,973.10 = 2,132.84 : x
  2. Step 2: Convert to fraction form
    3,979.64/5,973.10 = 2,132.84/x
  3. Step 3: Cross multiply
    3,979.64x = 5,973.10 × 2,132.84
  4. Step 4: Simplify right side
    3,979.64x = 12,739,666.60
  5. Step 5: Solve for x
    x = 12,739,666.60/3,979.64
  6. Step 6: Final answer
    x = 3,201.21

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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.