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Finding the Fourth Proportional to 6,517.50, 8,992.02 and 4,160.40

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Solution

The fourth proportional to 6,517.50, 8,992.02 and 4,160.40 is: 5,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.50 : 8,992.02 = 4,160.40 : x
  2. Step 2: Convert to fraction form
    6,517.50/8,992.02 = 4,160.40/x
  3. Step 3: Cross multiply
    6,517.50x = 8,992.02 × 4,160.40
  4. Step 4: Simplify right side
    6,517.50x = 37,410,400.01
  5. Step 5: Solve for x
    x = 37,410,400.01/6,517.50
  6. Step 6: Final answer
    x = 5,739.99

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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.