Home / 6,450.28-8,900.39-3,617.80

Finding the Fourth Proportional to 6,450.28, 8,900.39 and 3,617.80

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Solution

The fourth proportional to 6,450.28, 8,900.39 and 3,617.80 is: 4,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.28 : 8,900.39 = 3,617.80 : x
  2. Step 2: Convert to fraction form
    6,450.28/8,900.39 = 3,617.80/x
  3. Step 3: Cross multiply
    6,450.28x = 8,900.39 × 3,617.80
  4. Step 4: Simplify right side
    6,450.28x = 32,199,830.94
  5. Step 5: Solve for x
    x = 32,199,830.94/6,450.28
  6. Step 6: Final answer
    x = 4,992.01

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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.