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Finding the Fourth Proportional to 4,221.30, 6,331.95 and 3,933.30

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Solution

The fourth proportional to 4,221.30, 6,331.95 and 3,933.30 is: 5,899.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.30 : 6,331.95 = 3,933.30 : x
  2. Step 2: Convert to fraction form
    4,221.30/6,331.95 = 3,933.30/x
  3. Step 3: Cross multiply
    4,221.30x = 6,331.95 × 3,933.30
  4. Step 4: Simplify right side
    4,221.30x = 24,905,458.94
  5. Step 5: Solve for x
    x = 24,905,458.94/4,221.30
  6. Step 6: Final answer
    x = 5,899.95

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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.