Home / 7,129.49-10,695.66-2,198.94

Finding the Fourth Proportional to 7,129.49, 10,695.66 and 2,198.94

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Solution

The fourth proportional to 7,129.49, 10,695.66 and 2,198.94 is: 3,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.49 : 10,695.66 = 2,198.94 : x
  2. Step 2: Convert to fraction form
    7,129.49/10,695.66 = 2,198.94/x
  3. Step 3: Cross multiply
    7,129.49x = 10,695.66 × 2,198.94
  4. Step 4: Simplify right side
    7,129.49x = 23,519,106.35
  5. Step 5: Solve for x
    x = 23,519,106.35/7,129.49
  6. Step 6: Final answer
    x = 3,298.85

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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.