Home / 3,990.27-5,981.54-2,236.13

Finding the Fourth Proportional to 3,990.27, 5,981.54 and 2,236.13

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Solution

The fourth proportional to 3,990.27, 5,981.54 and 2,236.13 is: 3,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.27 : 5,981.54 = 2,236.13 : x
  2. Step 2: Convert to fraction form
    3,990.27/5,981.54 = 2,236.13/x
  3. Step 3: Cross multiply
    3,990.27x = 5,981.54 × 2,236.13
  4. Step 4: Simplify right side
    3,990.27x = 13,375,459.95
  5. Step 5: Solve for x
    x = 13,375,459.95/3,990.27
  6. Step 6: Final answer
    x = 3,352.02

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1.5x scale

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.