Home / 3,976.08-5,486.58-2,207.28

Finding the Fourth Proportional to 3,976.08, 5,486.58 and 2,207.28

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Solution

The fourth proportional to 3,976.08, 5,486.58 and 2,207.28 is: 3,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.08 : 5,486.58 = 2,207.28 : x
  2. Step 2: Convert to fraction form
    3,976.08/5,486.58 = 2,207.28/x
  3. Step 3: Cross multiply
    3,976.08x = 5,486.58 × 2,207.28
  4. Step 4: Simplify right side
    3,976.08x = 12,110,418.30
  5. Step 5: Solve for x
    x = 12,110,418.30/3,976.08
  6. Step 6: Final answer
    x = 3,045.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.