Home / 1,992.16-2,749.20-1,371.04

Finding the Fourth Proportional to 1,992.16, 2,749.20 and 1,371.04

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Solution

The fourth proportional to 1,992.16, 2,749.20 and 1,371.04 is: 1,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.16 : 2,749.20 = 1,371.04 : x
  2. Step 2: Convert to fraction form
    1,992.16/2,749.20 = 1,371.04/x
  3. Step 3: Cross multiply
    1,992.16x = 2,749.20 × 1,371.04
  4. Step 4: Simplify right side
    1,992.16x = 3,769,263.17
  5. Step 5: Solve for x
    x = 3,769,263.17/1,992.16
  6. Step 6: Final answer
    x = 1,892.05

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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.