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Finding the Fourth Proportional to 6,458.87, 8,911.01 and 3,625.85

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Solution

The fourth proportional to 6,458.87, 8,911.01 and 3,625.85 is: 5,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.87 : 8,911.01 = 3,625.85 : x
  2. Step 2: Convert to fraction form
    6,458.87/8,911.01 = 3,625.85/x
  3. Step 3: Cross multiply
    6,458.87x = 8,911.01 × 3,625.85
  4. Step 4: Simplify right side
    6,458.87x = 32,310,016.95
  5. Step 5: Solve for x
    x = 32,310,016.95/6,458.87
  6. Step 6: Final answer
    x = 5,002.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.