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Finding the Fourth Proportional to 3,751.92, 5,176.91 and 2,072.99

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Solution

The fourth proportional to 3,751.92, 5,176.91 and 2,072.99 is: 2,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.92 : 5,176.91 = 2,072.99 : x
  2. Step 2: Convert to fraction form
    3,751.92/5,176.91 = 2,072.99/x
  3. Step 3: Cross multiply
    3,751.92x = 5,176.91 × 2,072.99
  4. Step 4: Simplify right side
    3,751.92x = 10,731,700.79
  5. Step 5: Solve for x
    x = 10,731,700.79/3,751.92
  6. Step 6: Final answer
    x = 2,860.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.