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Finding the Fourth Proportional to 1,668.26, 2,300.49 and 1,004.99

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Solution

The fourth proportional to 1,668.26, 2,300.49 and 1,004.99 is: 1,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.26 : 2,300.49 = 1,004.99 : x
  2. Step 2: Convert to fraction form
    1,668.26/2,300.49 = 1,004.99/x
  3. Step 3: Cross multiply
    1,668.26x = 2,300.49 × 1,004.99
  4. Step 4: Simplify right side
    1,668.26x = 2,311,957.94
  5. Step 5: Solve for x
    x = 2,311,957.94/1,668.26
  6. Step 6: Final answer
    x = 1,385.85

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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.