Home / 6,729.20-9,290.87-4,212.33

Finding the Fourth Proportional to 6,729.20, 9,290.87 and 4,212.33

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Solution

The fourth proportional to 6,729.20, 9,290.87 and 4,212.33 is: 5,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,729.20 : 9,290.87 = 4,212.33 : x
  2. Step 2: Convert to fraction form
    6,729.20/9,290.87 = 4,212.33/x
  3. Step 3: Cross multiply
    6,729.20x = 9,290.87 × 4,212.33
  4. Step 4: Simplify right side
    6,729.20x = 39,136,210.43
  5. Step 5: Solve for x
    x = 39,136,210.43/6,729.20
  6. Step 6: Final answer
    x = 5,815.88

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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.