Home / 1,705.44-2,351.20-1,668.64

Finding the Fourth Proportional to 1,705.44, 2,351.20 and 1,668.64

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Solution

The fourth proportional to 1,705.44, 2,351.20 and 1,668.64 is: 2,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.44 : 2,351.20 = 1,668.64 : x
  2. Step 2: Convert to fraction form
    1,705.44/2,351.20 = 1,668.64/x
  3. Step 3: Cross multiply
    1,705.44x = 2,351.20 × 1,668.64
  4. Step 4: Simplify right side
    1,705.44x = 3,923,306.37
  5. Step 5: Solve for x
    x = 3,923,306.37/1,705.44
  6. Step 6: Final answer
    x = 2,300.47

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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.