Home / 2,921.11-4,378.68-1,167.33

Finding the Fourth Proportional to 2,921.11, 4,378.68 and 1,167.33

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Solution

The fourth proportional to 2,921.11, 4,378.68 and 1,167.33 is: 1,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.11 : 4,378.68 = 1,167.33 : x
  2. Step 2: Convert to fraction form
    2,921.11/4,378.68 = 1,167.33/x
  3. Step 3: Cross multiply
    2,921.11x = 4,378.68 × 1,167.33
  4. Step 4: Simplify right side
    2,921.11x = 5,111,336.79
  5. Step 5: Solve for x
    x = 5,111,336.79/2,921.11
  6. Step 6: Final answer
    x = 1,749.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.