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Finding the Fourth Proportional to 1,668.92, 2,503.35 and 573.29

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Solution

The fourth proportional to 1,668.92, 2,503.35 and 573.29 is: 859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.92 : 2,503.35 = 573.29 : x
  2. Step 2: Convert to fraction form
    1,668.92/2,503.35 = 573.29/x
  3. Step 3: Cross multiply
    1,668.92x = 2,503.35 × 573.29
  4. Step 4: Simplify right side
    1,668.92x = 1,435,145.52
  5. Step 5: Solve for x
    x = 1,435,145.52/1,668.92
  6. Step 6: Final answer
    x = 859.92

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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.