Home / 7,144.45-10,718.23-2,146.61

Finding the Fourth Proportional to 7,144.45, 10,718.23 and 2,146.61

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Solution

The fourth proportional to 7,144.45, 10,718.23 and 2,146.61 is: 3,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.45 : 10,718.23 = 2,146.61 : x
  2. Step 2: Convert to fraction form
    7,144.45/10,718.23 = 2,146.61/x
  3. Step 3: Cross multiply
    7,144.45x = 10,718.23 × 2,146.61
  4. Step 4: Simplify right side
    7,144.45x = 23,007,859.70
  5. Step 5: Solve for x
    x = 23,007,859.70/7,144.45
  6. Step 6: Final answer
    x = 3,220.38

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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.