Home / 3,721.86-5,136.22-2,043.23

Finding the Fourth Proportional to 3,721.86, 5,136.22 and 2,043.23

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Solution

The fourth proportional to 3,721.86, 5,136.22 and 2,043.23 is: 2,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.86 : 5,136.22 = 2,043.23 : x
  2. Step 2: Convert to fraction form
    3,721.86/5,136.22 = 2,043.23/x
  3. Step 3: Cross multiply
    3,721.86x = 5,136.22 × 2,043.23
  4. Step 4: Simplify right side
    3,721.86x = 10,494,478.79
  5. Step 5: Solve for x
    x = 10,494,478.79/3,721.86
  6. Step 6: Final answer
    x = 2,819.69

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1.5x scale

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.