Home / 5,450.01-7,521.21-3,213.81

Finding the Fourth Proportional to 5,450.01, 7,521.21 and 3,213.81

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Solution

The fourth proportional to 5,450.01, 7,521.21 and 3,213.81 is: 4,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.01 : 7,521.21 = 3,213.81 : x
  2. Step 2: Convert to fraction form
    5,450.01/7,521.21 = 3,213.81/x
  3. Step 3: Cross multiply
    5,450.01x = 7,521.21 × 3,213.81
  4. Step 4: Simplify right side
    5,450.01x = 24,171,739.91
  5. Step 5: Solve for x
    x = 24,171,739.91/5,450.01
  6. Step 6: Final answer
    x = 4,435.17

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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.