Home / 7,236.12-10,855.84-2,619.12

Finding the Fourth Proportional to 7,236.12, 10,855.84 and 2,619.12

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Solution

The fourth proportional to 7,236.12, 10,855.84 and 2,619.12 is: 3,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.12 : 10,855.84 = 2,619.12 : x
  2. Step 2: Convert to fraction form
    7,236.12/10,855.84 = 2,619.12/x
  3. Step 3: Cross multiply
    7,236.12x = 10,855.84 × 2,619.12
  4. Step 4: Simplify right side
    7,236.12x = 28,432,747.66
  5. Step 5: Solve for x
    x = 28,432,747.66/7,236.12
  6. Step 6: Final answer
    x = 3,929.28

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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.