Home / 2,992.32-4,131.26-1,930.56

Finding the Fourth Proportional to 2,992.32, 4,131.26 and 1,930.56

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Solution

The fourth proportional to 2,992.32, 4,131.26 and 1,930.56 is: 2,665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.32 : 4,131.26 = 1,930.56 : x
  2. Step 2: Convert to fraction form
    2,992.32/4,131.26 = 1,930.56/x
  3. Step 3: Cross multiply
    2,992.32x = 4,131.26 × 1,930.56
  4. Step 4: Simplify right side
    2,992.32x = 7,975,645.31
  5. Step 5: Solve for x
    x = 7,975,645.31/2,992.32
  6. Step 6: Final answer
    x = 2,665.37

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1.5x scale

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.