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Finding the Fourth Proportional to 3,333.75, 4,997.93 and 1,387.41

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Solution

The fourth proportional to 3,333.75, 4,997.93 and 1,387.41 is: 2,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.75 : 4,997.93 = 1,387.41 : x
  2. Step 2: Convert to fraction form
    3,333.75/4,997.93 = 1,387.41/x
  3. Step 3: Cross multiply
    3,333.75x = 4,997.93 × 1,387.41
  4. Step 4: Simplify right side
    3,333.75x = 6,934,171.12
  5. Step 5: Solve for x
    x = 6,934,171.12/3,333.75
  6. Step 6: Final answer
    x = 2,079.99

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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.