Home / 5,680.82-8,521.23-2,391.78

Finding the Fourth Proportional to 5,680.82, 8,521.23 and 2,391.78

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Solution

The fourth proportional to 5,680.82, 8,521.23 and 2,391.78 is: 3,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.82 : 8,521.23 = 2,391.78 : x
  2. Step 2: Convert to fraction form
    5,680.82/8,521.23 = 2,391.78/x
  3. Step 3: Cross multiply
    5,680.82x = 8,521.23 × 2,391.78
  4. Step 4: Simplify right side
    5,680.82x = 20,380,907.49
  5. Step 5: Solve for x
    x = 20,380,907.49/5,680.82
  6. Step 6: Final answer
    x = 3,587.67

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.