Home / 6,418.50-8,857.53-3,474.50

Finding the Fourth Proportional to 6,418.50, 8,857.53 and 3,474.50

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Solution

The fourth proportional to 6,418.50, 8,857.53 and 3,474.50 is: 4,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.50 : 8,857.53 = 3,474.50 : x
  2. Step 2: Convert to fraction form
    6,418.50/8,857.53 = 3,474.50/x
  3. Step 3: Cross multiply
    6,418.50x = 8,857.53 × 3,474.50
  4. Step 4: Simplify right side
    6,418.50x = 30,775,487.99
  5. Step 5: Solve for x
    x = 30,775,487.99/6,418.50
  6. Step 6: Final answer
    x = 4,794.81

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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.