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Finding the Fourth Proportional to 4,745.79, 7,119.11 and 2,895.97

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Solution

The fourth proportional to 4,745.79, 7,119.11 and 2,895.97 is: 4,344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.79 : 7,119.11 = 2,895.97 : x
  2. Step 2: Convert to fraction form
    4,745.79/7,119.11 = 2,895.97/x
  3. Step 3: Cross multiply
    4,745.79x = 7,119.11 × 2,895.97
  4. Step 4: Simplify right side
    4,745.79x = 20,616,728.99
  5. Step 5: Solve for x
    x = 20,616,728.99/4,745.79
  6. Step 6: Final answer
    x = 4,344.21

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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.