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Finding the Fourth Proportional to 4,486.70, 6,723.23 and 2,143.48

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Solution

The fourth proportional to 4,486.70, 6,723.23 and 2,143.48 is: 3,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.70 : 6,723.23 = 2,143.48 : x
  2. Step 2: Convert to fraction form
    4,486.70/6,723.23 = 2,143.48/x
  3. Step 3: Cross multiply
    4,486.70x = 6,723.23 × 2,143.48
  4. Step 4: Simplify right side
    4,486.70x = 14,411,072.93
  5. Step 5: Solve for x
    x = 14,411,072.93/4,486.70
  6. Step 6: Final answer
    x = 3,211.95

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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.