Home / 2,992.87-4,131.62-1,874.43

Finding the Fourth Proportional to 2,992.87, 4,131.62 and 1,874.43

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Solution

The fourth proportional to 2,992.87, 4,131.62 and 1,874.43 is: 2,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.87 : 4,131.62 = 1,874.43 : x
  2. Step 2: Convert to fraction form
    2,992.87/4,131.62 = 1,874.43/x
  3. Step 3: Cross multiply
    2,992.87x = 4,131.62 × 1,874.43
  4. Step 4: Simplify right side
    2,992.87x = 7,744,432.48
  5. Step 5: Solve for x
    x = 7,744,432.48/2,992.87
  6. Step 6: Final answer
    x = 2,587.63

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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.