Home / 3,423.76-5,136.68-1,668.51

Finding the Fourth Proportional to 3,423.76, 5,136.68 and 1,668.51

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Solution

The fourth proportional to 3,423.76, 5,136.68 and 1,668.51 is: 2,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.76 : 5,136.68 = 1,668.51 : x
  2. Step 2: Convert to fraction form
    3,423.76/5,136.68 = 1,668.51/x
  3. Step 3: Cross multiply
    3,423.76x = 5,136.68 × 1,668.51
  4. Step 4: Simplify right side
    3,423.76x = 8,570,600.61
  5. Step 5: Solve for x
    x = 8,570,600.61/3,423.76
  6. Step 6: Final answer
    x = 2,503.27

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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.