Home / 2,917.36-4,377.85-1,185.98

Finding the Fourth Proportional to 2,917.36, 4,377.85 and 1,185.98

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Solution

The fourth proportional to 2,917.36, 4,377.85 and 1,185.98 is: 1,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.36 : 4,377.85 = 1,185.98 : x
  2. Step 2: Convert to fraction form
    2,917.36/4,377.85 = 1,185.98/x
  3. Step 3: Cross multiply
    2,917.36x = 4,377.85 × 1,185.98
  4. Step 4: Simplify right side
    2,917.36x = 5,192,042.54
  5. Step 5: Solve for x
    x = 5,192,042.54/2,917.36
  6. Step 6: Final answer
    x = 1,779.71

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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.