Home / 5,450.90-7,520.04-3,211.25

Finding the Fourth Proportional to 5,450.90, 7,520.04 and 3,211.25

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Solution

The fourth proportional to 5,450.90, 7,520.04 and 3,211.25 is: 4,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.90 : 7,520.04 = 3,211.25 : x
  2. Step 2: Convert to fraction form
    5,450.90/7,520.04 = 3,211.25/x
  3. Step 3: Cross multiply
    5,450.90x = 7,520.04 × 3,211.25
  4. Step 4: Simplify right side
    5,450.90x = 24,148,690.85
  5. Step 5: Solve for x
    x = 24,148,690.85/5,450.90
  6. Step 6: Final answer
    x = 4,430.22

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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.