Home / 6,450.80-8,902.21-3,618.81

Finding the Fourth Proportional to 6,450.80, 8,902.21 and 3,618.81

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Solution

The fourth proportional to 6,450.80, 8,902.21 and 3,618.81 is: 4,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.80 : 8,902.21 = 3,618.81 : x
  2. Step 2: Convert to fraction form
    6,450.80/8,902.21 = 3,618.81/x
  3. Step 3: Cross multiply
    6,450.80x = 8,902.21 × 3,618.81
  4. Step 4: Simplify right side
    6,450.80x = 32,215,406.57
  5. Step 5: Solve for x
    x = 32,215,406.57/6,450.80
  6. Step 6: Final answer
    x = 4,994.02

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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.