Home / 3,623.72-4,999.97-2,131.80

Finding the Fourth Proportional to 3,623.72, 4,999.97 and 2,131.80

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Solution

The fourth proportional to 3,623.72, 4,999.97 and 2,131.80 is: 2,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.72 : 4,999.97 = 2,131.80 : x
  2. Step 2: Convert to fraction form
    3,623.72/4,999.97 = 2,131.80/x
  3. Step 3: Cross multiply
    3,623.72x = 4,999.97 × 2,131.80
  4. Step 4: Simplify right side
    3,623.72x = 10,658,925.39
  5. Step 5: Solve for x
    x = 10,658,925.39/3,623.72
  6. Step 6: Final answer
    x = 2,941.44

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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.