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Finding the Fourth Proportional to 2,751.73, 4,119.81 and 2,492.20

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Solution

The fourth proportional to 2,751.73, 4,119.81 and 2,492.20 is: 3,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.73 : 4,119.81 = 2,492.20 : x
  2. Step 2: Convert to fraction form
    2,751.73/4,119.81 = 2,492.20/x
  3. Step 3: Cross multiply
    2,751.73x = 4,119.81 × 2,492.20
  4. Step 4: Simplify right side
    2,751.73x = 10,267,390.48
  5. Step 5: Solve for x
    x = 10,267,390.48/2,751.73
  6. Step 6: Final answer
    x = 3,731.25

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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.