Home / 3,752.78-5,179.05-2,159.96

Finding the Fourth Proportional to 3,752.78, 5,179.05 and 2,159.96

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Solution

The fourth proportional to 3,752.78, 5,179.05 and 2,159.96 is: 2,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.78 : 5,179.05 = 2,159.96 : x
  2. Step 2: Convert to fraction form
    3,752.78/5,179.05 = 2,159.96/x
  3. Step 3: Cross multiply
    3,752.78x = 5,179.05 × 2,159.96
  4. Step 4: Simplify right side
    3,752.78x = 11,186,514.94
  5. Step 5: Solve for x
    x = 11,186,514.94/3,752.78
  6. Step 6: Final answer
    x = 2,980.86

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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.