Home / 3,379.32-5,058.36-2,148.12

Finding the Fourth Proportional to 3,379.32, 5,058.36 and 2,148.12

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Solution

The fourth proportional to 3,379.32, 5,058.36 and 2,148.12 is: 3,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.32 : 5,058.36 = 2,148.12 : x
  2. Step 2: Convert to fraction form
    3,379.32/5,058.36 = 2,148.12/x
  3. Step 3: Cross multiply
    3,379.32x = 5,058.36 × 2,148.12
  4. Step 4: Simplify right side
    3,379.32x = 10,865,964.28
  5. Step 5: Solve for x
    x = 10,865,964.28/3,379.32
  6. Step 6: Final answer
    x = 3,215.43

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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.