Home / 4,788.29-7,185.68-1,668.28

Finding the Fourth Proportional to 4,788.29, 7,185.68 and 1,668.28

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Solution

The fourth proportional to 4,788.29, 7,185.68 and 1,668.28 is: 2,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.29 : 7,185.68 = 1,668.28 : x
  2. Step 2: Convert to fraction form
    4,788.29/7,185.68 = 1,668.28/x
  3. Step 3: Cross multiply
    4,788.29x = 7,185.68 × 1,668.28
  4. Step 4: Simplify right side
    4,788.29x = 11,987,699.92
  5. Step 5: Solve for x
    x = 11,987,699.92/4,788.29
  6. Step 6: Final answer
    x = 2,503.55

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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.