Home / 7,144.05-10,718.28-3,198.63

Finding the Fourth Proportional to 7,144.05, 10,718.28 and 3,198.63

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Solution

The fourth proportional to 7,144.05, 10,718.28 and 3,198.63 is: 4,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.05 : 10,718.28 = 3,198.63 : x
  2. Step 2: Convert to fraction form
    7,144.05/10,718.28 = 3,198.63/x
  3. Step 3: Cross multiply
    7,144.05x = 10,718.28 × 3,198.63
  4. Step 4: Simplify right side
    7,144.05x = 34,283,811.96
  5. Step 5: Solve for x
    x = 34,283,811.96/7,144.05
  6. Step 6: Final answer
    x = 4,798.93

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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.