Home / 4,755.61-7,135.10-2,122.87

Finding the Fourth Proportional to 4,755.61, 7,135.10 and 2,122.87

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Solution

The fourth proportional to 4,755.61, 7,135.10 and 2,122.87 is: 3,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.61 : 7,135.10 = 2,122.87 : x
  2. Step 2: Convert to fraction form
    4,755.61/7,135.10 = 2,122.87/x
  3. Step 3: Cross multiply
    4,755.61x = 7,135.10 × 2,122.87
  4. Step 4: Simplify right side
    4,755.61x = 15,146,861.28
  5. Step 5: Solve for x
    x = 15,146,861.28/4,755.61
  6. Step 6: Final answer
    x = 3,185.05

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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.