Home / 4,917.72-6,780.55-4,018.13

Finding the Fourth Proportional to 4,917.72, 6,780.55 and 4,018.13

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Solution

The fourth proportional to 4,917.72, 6,780.55 and 4,018.13 is: 5,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.72 : 6,780.55 = 4,018.13 : x
  2. Step 2: Convert to fraction form
    4,917.72/6,780.55 = 4,018.13/x
  3. Step 3: Cross multiply
    4,917.72x = 6,780.55 × 4,018.13
  4. Step 4: Simplify right side
    4,917.72x = 27,245,138.28
  5. Step 5: Solve for x
    x = 27,245,138.28/4,917.72
  6. Step 6: Final answer
    x = 5,540.20

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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.