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Finding the Fourth Proportional to 3,333.28, 4,999.02 and 1,142.50

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Solution

The fourth proportional to 3,333.28, 4,999.02 and 1,142.50 is: 1,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.28 : 4,999.02 = 1,142.50 : x
  2. Step 2: Convert to fraction form
    3,333.28/4,999.02 = 1,142.50/x
  3. Step 3: Cross multiply
    3,333.28x = 4,999.02 × 1,142.50
  4. Step 4: Simplify right side
    3,333.28x = 5,711,380.35
  5. Step 5: Solve for x
    x = 5,711,380.35/3,333.28
  6. Step 6: Final answer
    x = 1,713.44

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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.