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Finding the Fourth Proportional to 3,333.87, 5,000.22 and 1,142.28

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Solution

The fourth proportional to 3,333.87, 5,000.22 and 1,142.28 is: 1,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.87 : 5,000.22 = 1,142.28 : x
  2. Step 2: Convert to fraction form
    3,333.87/5,000.22 = 1,142.28/x
  3. Step 3: Cross multiply
    3,333.87x = 5,000.22 × 1,142.28
  4. Step 4: Simplify right side
    3,333.87x = 5,711,651.30
  5. Step 5: Solve for x
    x = 5,711,651.30/3,333.87
  6. Step 6: Final answer
    x = 1,713.22

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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.