Home / 1,989.09-2,744.82-1,104.87

Finding the Fourth Proportional to 1,989.09, 2,744.82 and 1,104.87

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Solution

The fourth proportional to 1,989.09, 2,744.82 and 1,104.87 is: 1,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.09 : 2,744.82 = 1,104.87 : x
  2. Step 2: Convert to fraction form
    1,989.09/2,744.82 = 1,104.87/x
  3. Step 3: Cross multiply
    1,989.09x = 2,744.82 × 1,104.87
  4. Step 4: Simplify right side
    1,989.09x = 3,032,679.57
  5. Step 5: Solve for x
    x = 3,032,679.57/1,989.09
  6. Step 6: Final answer
    x = 1,524.66

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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.