Home / 4,220.19-6,338.49-3,440.76

Finding the Fourth Proportional to 4,220.19, 6,338.49 and 3,440.76

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Solution

The fourth proportional to 4,220.19, 6,338.49 and 3,440.76 is: 5,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.19 : 6,338.49 = 3,440.76 : x
  2. Step 2: Convert to fraction form
    4,220.19/6,338.49 = 3,440.76/x
  3. Step 3: Cross multiply
    4,220.19x = 6,338.49 × 3,440.76
  4. Step 4: Simplify right side
    4,220.19x = 21,809,222.85
  5. Step 5: Solve for x
    x = 21,809,222.85/4,220.19
  6. Step 6: Final answer
    x = 5,167.83

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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.