Home / 3,623.40-4,999.11-2,131.83

Finding the Fourth Proportional to 3,623.40, 4,999.11 and 2,131.83

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Solution

The fourth proportional to 3,623.40, 4,999.11 and 2,131.83 is: 2,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.40 : 4,999.11 = 2,131.83 : x
  2. Step 2: Convert to fraction form
    3,623.40/4,999.11 = 2,131.83/x
  3. Step 3: Cross multiply
    3,623.40x = 4,999.11 × 2,131.83
  4. Step 4: Simplify right side
    3,623.40x = 10,657,252.67
  5. Step 5: Solve for x
    x = 10,657,252.67/3,623.40
  6. Step 6: Final answer
    x = 2,941.23

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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.