Home / 2,672.72-4,011-1,192.31

Finding the Fourth Proportional to 2,672.72, 4,011 and 1,192.31

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Solution

The fourth proportional to 2,672.72, 4,011 and 1,192.31 is: 1,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.72 : 4,011 = 1,192.31 : x
  2. Step 2: Convert to fraction form
    2,672.72/4,011 = 1,192.31/x
  3. Step 3: Cross multiply
    2,672.72x = 4,011 × 1,192.31
  4. Step 4: Simplify right side
    2,672.72x = 4,782,355.41
  5. Step 5: Solve for x
    x = 4,782,355.41/2,672.72
  6. Step 6: Final answer
    x = 1,789.32

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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.