Home / 2,131.07-2,940.44-1,234.62

Finding the Fourth Proportional to 2,131.07, 2,940.44 and 1,234.62

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Solution

The fourth proportional to 2,131.07, 2,940.44 and 1,234.62 is: 1,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.07 : 2,940.44 = 1,234.62 : x
  2. Step 2: Convert to fraction form
    2,131.07/2,940.44 = 1,234.62/x
  3. Step 3: Cross multiply
    2,131.07x = 2,940.44 × 1,234.62
  4. Step 4: Simplify right side
    2,131.07x = 3,630,319.86
  5. Step 5: Solve for x
    x = 3,630,319.86/2,131.07
  6. Step 6: Final answer
    x = 1,703.52

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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.