Home / 2,921.09-4,381.79-1,166.36

Finding the Fourth Proportional to 2,921.09, 4,381.79 and 1,166.36

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Solution

The fourth proportional to 2,921.09, 4,381.79 and 1,166.36 is: 1,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.09 : 4,381.79 = 1,166.36 : x
  2. Step 2: Convert to fraction form
    2,921.09/4,381.79 = 1,166.36/x
  3. Step 3: Cross multiply
    2,921.09x = 4,381.79 × 1,166.36
  4. Step 4: Simplify right side
    2,921.09x = 5,110,716.84
  5. Step 5: Solve for x
    x = 5,110,716.84/2,921.09
  6. Step 6: Final answer
    x = 1,749.60

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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.