Home / 5,450.28-7,518.96-3,211.11

Finding the Fourth Proportional to 5,450.28, 7,518.96 and 3,211.11

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Solution

The fourth proportional to 5,450.28, 7,518.96 and 3,211.11 is: 4,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.28 : 7,518.96 = 3,211.11 : x
  2. Step 2: Convert to fraction form
    5,450.28/7,518.96 = 3,211.11/x
  3. Step 3: Cross multiply
    5,450.28x = 7,518.96 × 3,211.11
  4. Step 4: Simplify right side
    5,450.28x = 24,144,207.65
  5. Step 5: Solve for x
    x = 24,144,207.65/5,450.28
  6. Step 6: Final answer
    x = 4,429.90

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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.