Home / 1,841.80-2,757.52-1,668.80

Finding the Fourth Proportional to 1,841.80, 2,757.52 and 1,668.80

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Solution

The fourth proportional to 1,841.80, 2,757.52 and 1,668.80 is: 2,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.80 : 2,757.52 = 1,668.80 : x
  2. Step 2: Convert to fraction form
    1,841.80/2,757.52 = 1,668.80/x
  3. Step 3: Cross multiply
    1,841.80x = 2,757.52 × 1,668.80
  4. Step 4: Simplify right side
    1,841.80x = 4,601,749.38
  5. Step 5: Solve for x
    x = 4,601,749.38/1,841.80
  6. Step 6: Final answer
    x = 2,498.51

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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.