Home / 1,992.62-2,749.90-1,246.51

Finding the Fourth Proportional to 1,992.62, 2,749.90 and 1,246.51

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Solution

The fourth proportional to 1,992.62, 2,749.90 and 1,246.51 is: 1,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.62 : 2,749.90 = 1,246.51 : x
  2. Step 2: Convert to fraction form
    1,992.62/2,749.90 = 1,246.51/x
  3. Step 3: Cross multiply
    1,992.62x = 2,749.90 × 1,246.51
  4. Step 4: Simplify right side
    1,992.62x = 3,427,765.04
  5. Step 5: Solve for x
    x = 3,427,765.04/1,992.62
  6. Step 6: Final answer
    x = 1,720.23

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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.