Home / 3,983.50-5,497.37-2,191.11

Finding the Fourth Proportional to 3,983.50, 5,497.37 and 2,191.11

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Solution

The fourth proportional to 3,983.50, 5,497.37 and 2,191.11 is: 3,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.50 : 5,497.37 = 2,191.11 : x
  2. Step 2: Convert to fraction form
    3,983.50/5,497.37 = 2,191.11/x
  3. Step 3: Cross multiply
    3,983.50x = 5,497.37 × 2,191.11
  4. Step 4: Simplify right side
    3,983.50x = 12,045,331.43
  5. Step 5: Solve for x
    x = 12,045,331.43/3,983.50
  6. Step 6: Final answer
    x = 3,023.81

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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.