Home / 2,764.80-4,145.14-1,668.92

Finding the Fourth Proportional to 2,764.80, 4,145.14 and 1,668.92

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Solution

The fourth proportional to 2,764.80, 4,145.14 and 1,668.92 is: 2,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.80 : 4,145.14 = 1,668.92 : x
  2. Step 2: Convert to fraction form
    2,764.80/4,145.14 = 1,668.92/x
  3. Step 3: Cross multiply
    2,764.80x = 4,145.14 × 1,668.92
  4. Step 4: Simplify right side
    2,764.80x = 6,917,907.05
  5. Step 5: Solve for x
    x = 6,917,907.05/2,764.80
  6. Step 6: Final answer
    x = 2,502.14

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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.