Home / 1,668.87-2,301.21-1,243.62

Finding the Fourth Proportional to 1,668.87, 2,301.21 and 1,243.62

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Solution

The fourth proportional to 1,668.87, 2,301.21 and 1,243.62 is: 1,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.87 : 2,301.21 = 1,243.62 : x
  2. Step 2: Convert to fraction form
    1,668.87/2,301.21 = 1,243.62/x
  3. Step 3: Cross multiply
    1,668.87x = 2,301.21 × 1,243.62
  4. Step 4: Simplify right side
    1,668.87x = 2,861,830.78
  5. Step 5: Solve for x
    x = 2,861,830.78/1,668.87
  6. Step 6: Final answer
    x = 1,714.83

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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.