Home / 3,222.76-4,447.59-1,806.90

Finding the Fourth Proportional to 3,222.76, 4,447.59 and 1,806.90

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Solution

The fourth proportional to 3,222.76, 4,447.59 and 1,806.90 is: 2,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.76 : 4,447.59 = 1,806.90 : x
  2. Step 2: Convert to fraction form
    3,222.76/4,447.59 = 1,806.90/x
  3. Step 3: Cross multiply
    3,222.76x = 4,447.59 × 1,806.90
  4. Step 4: Simplify right side
    3,222.76x = 8,036,360.27
  5. Step 5: Solve for x
    x = 8,036,360.27/3,222.76
  6. Step 6: Final answer
    x = 2,493.63

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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.