Home / 3,989.69-5,976.30-2,341.28

Finding the Fourth Proportional to 3,989.69, 5,976.30 and 2,341.28

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Solution

The fourth proportional to 3,989.69, 5,976.30 and 2,341.28 is: 3,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.69 : 5,976.30 = 2,341.28 : x
  2. Step 2: Convert to fraction form
    3,989.69/5,976.30 = 2,341.28/x
  3. Step 3: Cross multiply
    3,989.69x = 5,976.30 × 2,341.28
  4. Step 4: Simplify right side
    3,989.69x = 13,992,191.66
  5. Step 5: Solve for x
    x = 13,992,191.66/3,989.69
  6. Step 6: Final answer
    x = 3,507.09

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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.