Home / 1,788.85-2,696.68-1,669.92

Finding the Fourth Proportional to 1,788.85, 2,696.68 and 1,669.92

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Solution

The fourth proportional to 1,788.85, 2,696.68 and 1,669.92 is: 2,517.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.85 : 2,696.68 = 1,669.92 : x
  2. Step 2: Convert to fraction form
    1,788.85/2,696.68 = 1,669.92/x
  3. Step 3: Cross multiply
    1,788.85x = 2,696.68 × 1,669.92
  4. Step 4: Simplify right side
    1,788.85x = 4,503,239.87
  5. Step 5: Solve for x
    x = 4,503,239.87/1,788.85
  6. Step 6: Final answer
    x = 2,517.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.