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Finding the Fourth Proportional to 3,333.85, 5,003.91 and 1,691.57

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Solution

The fourth proportional to 3,333.85, 5,003.91 and 1,691.57 is: 2,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.85 : 5,003.91 = 1,691.57 : x
  2. Step 2: Convert to fraction form
    3,333.85/5,003.91 = 1,691.57/x
  3. Step 3: Cross multiply
    3,333.85x = 5,003.91 × 1,691.57
  4. Step 4: Simplify right side
    3,333.85x = 8,464,476.55
  5. Step 5: Solve for x
    x = 8,464,476.55/3,333.85
  6. Step 6: Final answer
    x = 2,538.95

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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.